CN113803924A - Cell refrigerator capable of preventing cell pollution - Google Patents
Cell refrigerator capable of preventing cell pollution Download PDFInfo
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- CN113803924A CN113803924A CN202111090722.7A CN202111090722A CN113803924A CN 113803924 A CN113803924 A CN 113803924A CN 202111090722 A CN202111090722 A CN 202111090722A CN 113803924 A CN113803924 A CN 113803924A
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- liquid nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/008—Alarm devices
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to the technical field of freezers, in particular to a cell freezing box capable of preventing cell pollution, which comprises a liquid nitrogen tank, wherein a pressure pump is fixedly connected to one side, close to the lower end, of the annular outer surface of the liquid nitrogen tank, a liquid conveying pipe is fixedly installed at the other side, close to the lower end, of the annular outer surface of the liquid nitrogen tank, one end of the liquid conveying pipe is fixedly connected with a main body mechanism of a freezing box, the right side of the main body mechanism of the freezing box is fixedly connected with an operating box shell, two operating holes are symmetrically formed in the position, close to the right side, of the outer surface of the upper end of the operating box shell, and the middle position of the outer surface of the upper end of the operating box shell is rotatably connected with a first box door. The automatic liquid nitrogen adding device can finish automatic adding of liquid nitrogen, can automatically inject the liquid nitrogen in the liquid nitrogen tank into the liquid nitrogen cavity, does not need manual periodical disassembly and addition, avoids the problem that liquid nitrogen is consumed due to poor sealing performance caused by periodical disassembly, saves cost, saves time and labor, and is convenient and rapid.
Description
Technical Field
The invention relates to the technical field of freezers, in particular to a cell freezer capable of preventing cell pollution.
Background
Cells are the basic unit of biological structure and physiological function, and are the basis for growth and development. The cells have various shapes, such as spherical, square and columnar shapes. The sizes of the cells are very different, the diameter of most cells is only a few micrometers, and some cells can reach more than 100 micrometers. Although the shape and the size of the cells are different, the structure of the cells is basically the same, except for mature red blood cells and platelets, all the cells have at least one cell nucleus which is a control center for regulating the vital activity of the cells, controlling division, differentiation, heredity and mutation.
The chinese patent discloses a stem cell fridge, and patent application number is 201821227597.3, a stem cell fridge include the box, set up the inner bag in the box, set up freezing bottle in the inner bag, freezing bottle passes through bottle closing cap portion and sets up inside the inner bag, the bottle closing cap portion erects at the box top, set up non-contact thermometer in the inner bag, the liquid nitrogen is placed in the space of inner bag and box. The utility model provides a stem cell fridge, simple structure, convenient access is located the stem cell transfer bag of depositing the incasement and can obtains fine cold-stored moisturizing effect, shifts the duplicate protection of bag to the stem cell. The box body and the box door are all composed of an inner layer, an outer layer and a middle heat insulation layer, the heat insulation effect is good, and nitrogen loss is reduced.
Although the above-mentioned comparison patent technology is simple in structure, convenient to store and take, and capable of obtaining good cold-storage and moisture-preservation effects, the box body is divided into a plurality of refrigerating chambers, and can store freezing tubes and freezing bags simultaneously to meet different requirements, and each refrigerating chamber is provided with a temperature sensor which can monitor the freezing condition of each refrigerating chamber in real time, the prior art is provided with a device for supplementing liquid nitrogen, when the liquid nitrogen is used up, the mechanical device between the box body and the inner container needs to be disassembled, then the liquid nitrogen is added into the gap between the inner container and the box body, and then the installation and sealing are carried out, the liquid nitrogen needs to be added and supplemented regularly, the disassembly is troublesome, the sealing performance is deteriorated due to the long-time disassembly and installation, the cost is increased due to the aggravated consumption of the liquid nitrogen, the time consumption is low, the practicability is poor, and whether the liquid nitrogen between the inner container and the gap of the box body is consumed or not can be determined in time, the failure to add liquid nitrogen in time can lead to the temperature rise in the freezer, and the refrigeration effect becomes poor.
Therefore, a cell refrigerator for preventing cell contamination is proposed.
Disclosure of Invention
The present invention is directed to a cell refrigerator for preventing cell contamination, which solves the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: a cell refrigerator capable of preventing cell pollution comprises a liquid nitrogen tank, wherein a pressure pump is fixedly connected to the position, close to one side of the lower end, of the annular outer surface of the liquid nitrogen tank, a liquid conveying pipe is fixedly installed at the position, close to the other side of the lower end, of the annular outer surface of the liquid nitrogen tank, one end of the liquid conveying pipe is fixedly connected with a refrigerator main body mechanism, an operation box shell is fixedly connected to the right side of the refrigerator main body mechanism, two operation holes are symmetrically formed in the position, close to the right side, of the outer surface of the upper end of the operation box shell, a first box door is rotatably connected to the middle position of the outer surface of the upper end of the operation box shell, a second box door is rotatably connected to the upper end of the outer surface of the right side of the operation box shell through a hinge, an arc-shaped handle is fixedly connected to the position of the upper end edge of the outer surface of the right side of the second box door, a culture dish placing plate is fixedly connected to the lower end of the inner surface of the operation box shell, and an ultraviolet irradiation lamp is fixedly arranged at the position, close to the middle, of the upper end of the inner surface of the operating box shell.
The main body mechanism of the refrigerator comprises a refrigerator shell, a liquid nitrogen cavity, a controller pipe, a refrigerator liner, an automatic popping mechanism, a third refrigerator door, a refrigerator door handle, an alarm mechanism, an electromagnetic valve closing controller, a hollow metal ball and an electromagnetic valve opening controller; the refrigerator comprises an operation box shell, a controller pipe, a solenoid valve closing controller, a solenoid valve opening controller, a controller pipe, a refrigerator inner container, a liquid nitrogen cavity, a refrigerator inner container, a third door and a door handle, wherein the left side surface of the operation box shell is provided with an opening, the right side of the refrigerator shell is fixedly connected with the left side of the operation box shell, the left end of the inner surface of the refrigerator shell is vertically and fixedly provided with the controller pipe close to the edge position, the upper end of the inner surface of the controller pipe is fixedly provided with the solenoid valve closing controller, the lower end of the inner surface of the controller pipe is fixedly provided with the solenoid valve opening controller, a hollow metal ball is arranged in a controller pipe channel between the solenoid valve closing controller and the solenoid valve opening controller, the right end of the inner surface of the refrigerator shell is fixedly provided with the refrigerator inner container, the liquid nitrogen cavity is arranged between the refrigerator shell and the refrigerator inner container, the right end of the refrigerator inner container is provided with the opening, the third door handle is rotatably arranged at the outer surface close to the edge position, the refrigerator inner container is characterized in that an automatic ejection mechanism is connected to the middle position inside the refrigerator inner container in a sliding mode, an alarm mechanism is fixedly installed at the center of the lower end of the refrigerator shell, and an electromagnetic valve is fixedly installed at the position, close to the refrigerator shell, of the outer circular surface of the infusion tube.
In the prior patent technology, liquid nitrogen is injected into a gap between an inner container and a box body, the liquid nitrogen is used for cooling, when the liquid nitrogen is required to be added, a mechanism device between the inner container and the box body needs to be detached firstly, then the liquid nitrogen is injected into the gap between the inner container and the box body, then the inner container and the box body are installed and sealed, the liquid nitrogen is required to be detached and added periodically, enough liquid nitrogen is required to be cooled and refrigerated between the inner container and the box body, the refrigerating effect is ensured, when the liquid nitrogen is added, the mechanism device between the inner container and the box body needs to be detached, the detachment is troublesome, the sealing performance is also deteriorated due to long-time detachment and installation, the consumption of the liquid nitrogen is aggravated, and the cost is increased; during operation, liquid nitrogen in the liquid nitrogen chamber is continuously consumed during operation, the liquid level of the liquid nitrogen in the liquid nitrogen chamber also continuously drops, the hollow metal ball in the controller tube floats on the liquid level of the liquid nitrogen, the liquid level of the liquid nitrogen continuously drops, the hollow metal ball also continuously drops along with the liquid level, when the liquid level of the liquid nitrogen drops to the electromagnetic valve opening controller, the hollow metal ball touches the electromagnetic valve opening controller at the moment, the electromagnetic valve is opened, the pressure pump continuously sends the liquid nitrogen into the liquid nitrogen chamber from the liquid nitrogen tank through the liquid conveying pipe, the liquid level of the liquid nitrogen continuously rises, the hollow metal ball in the controller tube also continuously rises along with the rise of the liquid level, when the liquid level rises to be close to the electromagnetic valve closing controller, the hollow metal ball touches the electromagnetic valve closing controller, the electromagnetic valve is closed, the liquid nitrogen stops being stopped to be consumed during operation, the liquid nitrogen also continuously drops, the liquid level of the liquid nitrogen in the liquid nitrogen chamber, the controller tube continuously falls, and the hollow metal ball touches the electromagnetic valve closing controllerInputting, finishing adding liquid nitrogen, when the liquid nitrogen in the liquid nitrogen tank is about to be consumed, powering off the electromagnetic valve, then detaching the liquid nitrogen tank, injecting the liquid nitrogen, then installing, and then powering on the electromagnetic valve, wherein the density of the liquid nitrogen is 0.81g/cm3The electromagnetic valve opening controller and the electromagnetic valve closing controller are capacitance type touch switch modules based on touch detection IC (TTP223B), the automatic addition of liquid nitrogen is completed by arranging the main body mechanism of the refrigerating box, when the liquid nitrogen in the liquid nitrogen cavity is consumed to a certain degree, the liquid nitrogen in the liquid nitrogen tank can be automatically injected into the liquid nitrogen cavity, manual periodical disassembly and addition are not needed, the problem that the liquid nitrogen is consumed due to poor sealing performance caused by periodical disassembly is avoided, the cost is saved, the time and the labor are saved, and the operation is convenient and fast.
Preferably, the automatic ejection mechanism comprises a test tube rack, an electric telescopic rod, a movable sliding block, a sliding chute, a buffer mechanism and a test tube placing hole; two spouts, two have been seted up to the both ends symmetry of fridge inner bag the equal fixed mounting in left end of spout has electric telescopic handle, electric telescopic handle's right-hand member fixed mounting has the removal slider, the one end and the test-tube rack fixed connection of removal slider, the hole is placed to the test tube has evenly been seted up with the downside surface to the upside surface of test-tube rack, the right-hand member of spout is provided with buffer gear.
When the device works, when cells in the refrigerator need to be taken out, a worker needs to wear protective gloves and stretches into the refrigerator to take out test tubes on the test tube rack, the cells in the test tubes are poured into a culture dish in the operation box, then the test tubes are placed back into the refrigerator, the temperature in the refrigerator is very low, the worker needs to wear the protective gloves to prevent hands from being frozen or injured, but the worker can not operate conveniently and easily cause errors by wearing the protective gloves, the device conveniently and quickly takes out and places back the test tubes by arranging the automatic ejection mechanism, when the test tubes in the refrigerator need to be taken out, a third box door is opened, an electric telescopic rod is started, the electric telescopic rod drives the moving slide block to move rightwards, the moving slide block drives the test tube rack connected with the moving slide block to move rightwards, and the moving slide block contacts with the buffer mechanism when moving to the right end of the chute, then slowly moving the test tube rack to the right, finally stopping at the position close to the rightmost end of the sliding groove, moving the test tube rack into the operation box, taking out the test tube on the test tube rack, pouring the test tube into a culture dish, putting the test tube back into the test tube rack, starting the electric telescopic rod, driving the moving slide block to move left by the electric telescopic rod, driving the test tube rack to move left by the moving slide block until the test tube rack completely enters the cold storage box, closing the electric telescopic rod, and finally closing the third box door to finish taking and placing the cells; accomplish the auto-eject of test-tube rack through setting up auto-eject mechanism, when the staff need take out the cell in the test tube, need not dress heavy protective gloves again and stretch into and take out and put back the test tube in the fridge, only need start electric telescopic handle and just can pop out the test-tube rack from the fridge, can convenient and fast take out and put back the test tube, convenient and fast more, avoided the mistake that wearing gloves probably caused, the staff hand has also been prevented from being frozen stifled or frostbite.
Preferably, the buffer mechanism comprises a buffer gasket and a buffer spring; the buffer mechanism is arranged in the sliding groove, the inner surface of the inner container of the refrigerator at one end of the buffer spring is fixedly connected, and the buffer gasket is fixedly connected at the other end of the buffer spring.
When the test tube ejection device is used, the automatic ejection mechanism moves rightwards, when the test tube ejection device moves to the rightmost end of the sliding groove, the movable sliding block can directly collide with the inner wall of the sliding groove, the automatic ejection mechanism is abraded and damaged after long-time use, and the service life of the automatic ejection mechanism is shortened.
Preferably, the alarm mechanism comprises an alarm shell, a compression spring, a hollow shell, a conducting strip, a closed baffle, a buzzer and a sealing piston; the alarm shell is fixedly connected with the lower end of the inner surface of the refrigerator shell, and two compression springs are symmetrically arranged at the edge position of the top end of the inner surface of the alarm shell; two compression spring's lower extreme fixedly connected with hollow shell, alarm casing internal surface is close to intermediate position fixedly connected with conducting strip, alarm casing internal surface is close to the airtight baffle of the fixed connection in position of lower extreme, the through-hole has been seted up to the lower extreme of airtight baffle, and the outer fixed surface of the lower extreme of airtight baffle is connected with bee calling organ, bee calling organ's lower extreme is provided with sealing piston.
When the electromagnetic valve and the pressure pump can not work normally, the liquid nitrogen can not be supplemented in time in the liquid nitrogen cavity, and the staff can not find the situation in time, so that the liquid nitrogen in the liquid nitrogen cavity is completely consumed, the temperature in the refrigerating box is increased, and the refrigerating effect is poor. When the liquid level reduces to the certain degree, hollow shell has partly to float on the liquid level of liquid nitrogen, compression spring removes hollow shell downwards through the elastic potential energy that is obtained by the compression this moment, along with the continuous reduction of liquid level, hollow shell constantly moves downwards, can touch the conducting strip at last, buzzer switch-on circuit sends the alarm sound, when solenoid valve, the unable normal during operation of force pump, the staff can in time discover, change the maintenance, can not influence the refrigeration effect of fridge.
Preferably, the lower end of the buzzer is provided with a sealing piston, and the sealing piston is in threaded connection with the refrigeration box shell.
When the buzzer is damaged and cannot normally work, the buzzer needs to be detached and replaced, the sealing piston is arranged to detach and replace the buzzer, when the buzzer is damaged, the sealing piston is screwed to detach and replace the sealing piston, the sealing piston is a stepped piston, a gasket is arranged at the step of the piston to strengthen sealing, meanwhile, the outer surface of the piston, connected with the refrigerator shell, is provided with threads, the piston is connected with the refrigerator shell through the threads, and the sealing effect is better.
Preferably, the surface nestification of freezer casing has the heat preservation for strengthen cold-stored effect, the heat preservation is the component of the cotton material of glass fiber heat preservation.
When the refrigerator works, liquid nitrogen is continuously gasified to absorb heat to ensure the refrigerating effect, the heat preservation and the refrigerating effect are enhanced by nesting the heat preservation layer outside the shell of the refrigerator, the glass fiber heat preservation cotton has good heat insulation property and is an excellent heat insulation material, the glass fiber cotton uses glass as a raw material and has quite high insulation property, the glass fiber has very strong corrosion resistance, the functional characteristics cannot be reduced after long-term use, the recovery property of the glass fiber heat preservation cotton is also good, impact vibration is not afraid, the moisture absorption rate of the glass fiber is close to zero under the common condition, and the condition that the glass fiber is wet and cracked due to water absorption expansion is not worried.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the main body mechanism of the refrigerator is arranged to complete automatic addition of the liquid nitrogen, when the liquid nitrogen in the liquid nitrogen cavity is consumed to a certain extent, the liquid nitrogen in the liquid nitrogen tank can be automatically injected into the liquid nitrogen cavity, manual periodical disassembly and addition are not needed, the problem that the liquid nitrogen is consumed due to poor sealing performance caused by periodical disassembly is avoided, the cost is saved, the time and the labor are saved, and the refrigerator is convenient and quick.
2. According to the invention, the automatic popping mechanism is arranged to complete the automatic popping of the test tube rack, when a worker needs to take out cells in the test tube, the worker does not need to wear heavy protective gloves to stretch into the cold storage box to take out and put back the test tube, and the test tube rack can be popped out of the cold storage box only by starting the electric telescopic rod, so that the test tube can be conveniently and quickly taken out and put back, the test tube is more convenient and quick, the error possibly caused by wearing the gloves is avoided, and the hands of the worker are prevented from being frozen or injured; when the electromagnetic valve and the pressure pump can not work normally, workers can find the electromagnetic valve and the pressure pump in time to replace and maintain the electromagnetic valve and the pressure pump, and the refrigerating effect of the refrigerating box can not be influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall cross-sectional view of the present invention;
FIG. 3 is a structural view of the cooler of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of the present invention;
FIG. 5 is a top cross-sectional view of the automatic ejection mechanism of the present invention;
FIG. 6 is a structural view of the test tube rack of the present invention;
FIG. 7 is an enlarged structural view of the cushioning mechanism of the present invention;
FIG. 8 is an enlarged structural view of the alarm mechanism of the present invention;
fig. 9 is a partial cross-sectional view of the alarm mechanism of the present invention.
In the figure: 1. a liquid nitrogen tank; 2. a pressure pump; 3. a transfusion tube; 4. a refrigerator body mechanism; 41. a refrigerator housing; 42. a liquid nitrogen cavity; 43. a controller tube; 44. a refrigerator liner; 45. an automatic pop-up mechanism; 451. a test tube rack; 452. an electric telescopic rod; 453. moving the slide block; 454. a chute; 455. a buffer mechanism; 4551. a cushion pad; 4552. a buffer spring; 456. test tube placement holes; 46. a third box door; 47. a door handle; 48. an alarm mechanism; 481. an alarm housing; 482. a compression spring; 483. a hollow shell; 484. a conductive sheet; 485. a closed baffle; 486. a buzzer; 487. a sealing piston; 49. an electromagnetic valve; 410. a solenoid valve closing controller; 411. a hollow metal ball; 412. the electromagnetic valve opens the controller; 5. an operating box housing; 6. a first door; 7. an operation hole; 8. a second door; 9. an arc-shaped handle; 10. a culture dish placing tray; 11. an ultraviolet irradiation lamp; 12. and (7) an insulating layer.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a technical solution of a cell refrigerator for preventing cell contamination:
a cell refrigerator for preventing cell pollution is disclosed, as shown in figures 1 to 4, comprising a liquid nitrogen tank 1, wherein the annular outer surface of the liquid nitrogen tank 1 is close to a pressure pump 2 fixedly connected with the position of one side of the lower end, the annular outer surface of the liquid nitrogen tank 1 is close to the position of the other side of the lower end, a transfusion tube 3 is fixedly installed, one end of the transfusion tube 3 is fixedly connected with a refrigerator main body mechanism 4, the right side of the refrigerator main body mechanism 4 is fixedly connected with an operation box shell 5, the position of the outer surface of the upper end of the operation box shell 5 close to the right side is symmetrically provided with two operation holes 7, the middle position of the outer surface of the upper end of the operation box shell 5 is rotatably connected with a first box door 6, the outer surface of the right side of the operation box shell 5 is rotatably connected with a second box door 8 through a hinge, the position of the outer surface of the right side of the second box door 8 is fixedly connected with an arc-shaped handle 9, the lower end of the inner surface of the operation box shell 5 is fixedly connected with a culture dish placing plate 10, and the upper end of the inner surface of the operation box shell 5 is fixedly provided with an ultraviolet irradiation lamp 11 at a position close to the middle.
The refrigerator main body mechanism 4 comprises a refrigerator shell 41, a liquid nitrogen cavity 42, a controller pipe 43, a refrigerator liner 44, an automatic ejecting mechanism 45, a third refrigerator door 46, a refrigerator door handle 47, an alarm mechanism 48, an electromagnetic valve 49, an electromagnetic valve closing controller 410, a hollow metal ball 411 and an electromagnetic valve opening controller 412; the left side surface of the operation box shell 5 is provided with an opening, the right side of the refrigeration box shell 41 is fixedly connected with the left side of the operation box shell 5, the controller pipe 43 is vertically and fixedly installed at the position, close to the edge, of the left end of the inner surface of the refrigeration box shell 41, the electromagnetic valve closing controller 410 is fixedly installed at the upper end of the inner surface of the controller pipe 43, the electromagnetic valve opening controller 412 is fixedly installed at the lower end of the inner surface of the controller pipe 43, a hollow metal ball 411 is arranged in a channel of the controller pipe 43 between the electromagnetic valve closing controller 410 and the electromagnetic valve opening controller 412, the refrigeration box inner container 44 is fixedly installed at the right end of the inner surface of the refrigeration box shell 41, a liquid nitrogen cavity 42 is formed between the refrigeration box shell 41 and the refrigeration box inner container 44, the right end of the refrigeration box inner container 44 is provided with an opening, and the upper end in the opening is rotatably provided with a third box door 46, a door handle 47 is fixedly installed on the outer surface of the right end of the third door 46 close to the edge, an automatic pop-up mechanism 45 is connected to the middle position inside the refrigerating box liner 44 in a sliding manner, an alarm mechanism 48 is fixedly installed at the center position of the lower end of the refrigerating box shell 41, and an electromagnetic valve 49 is fixedly installed on the outer circular surface of the infusion tube 3 close to the position of the refrigerating box shell 41.
In the prior patent technology, liquid nitrogen is injected into a gap between an inner container and a box body, the liquid nitrogen is used for cooling, when the liquid nitrogen is required to be added, a mechanism device between the inner container and the box body needs to be detached firstly, then the liquid nitrogen is injected into the gap between the inner container and the box body, then the inner container and the box body are installed and sealed, the liquid nitrogen is required to be detached and added periodically, enough liquid nitrogen is required to be cooled and refrigerated between the inner container and the box body, the refrigerating effect is ensured, when the liquid nitrogen is added, the mechanism device between the inner container and the box body needs to be detached, the detachment is troublesome, the sealing performance is also deteriorated due to long-time detachment and installation, the consumption of the liquid nitrogen is aggravated, and the cost is increased; when the liquid nitrogen controller works, liquid nitrogen in the liquid nitrogen cavity 42 is continuously consumed during working, the liquid level of the liquid nitrogen in the liquid nitrogen cavity 42 also continuously drops, the hollow metal ball 411 in the controller tube 43 floats on the liquid level of the liquid nitrogen, along with the continuous drop of the liquid level of the liquid nitrogen, the hollow metal ball 411 also continuously drops along with the liquid level, when the liquid level of the liquid nitrogen drops to the electromagnetic valve opening controller 412, the hollow metal ball 411 contacts with the electromagnetic valve opening controller 412, the electromagnetic valve 49 is opened, the liquid nitrogen is continuously sent into the liquid nitrogen cavity 42 from the liquid nitrogen tank 1 through the liquid conveying pipe 3 by the pressure pump 2, the liquid level of the liquid nitrogen continuously rises, the hollow metal ball 411 in the controller tube 43 also continuously rises along with the rise of the liquid level, when the liquid level rises to be close to the electromagnetic valve closing controller 410, the electromagnetic valve closing controller 410 is contacted with the hollow metal ball 411, the electromagnetic valve closing controller 49 is closed, and the input of the liquid nitrogen stops, completing the addition of the liquid nitrogen, when the liquid nitrogen in the liquid nitrogen tank 1 is about to be consumed, switching off the electromagnetic valve 49, then detaching the liquid nitrogen tank 1, injecting the liquid nitrogen, then mounting, and then switching on the electromagnetic valve 49, wherein the density of the liquid nitrogen is 0.81g/cm3The electromagnetic valve opening controller 412 and the electromagnetic valve closing controller 410 are capacitive touch switch modules based on touch detection ICTTP223B, and the invention completes the automatic addition of liquid nitrogen by arranging the refrigerator main body mechanism 4, when the liquid nitrogen is addedWhen liquid nitrogen in the chamber 42 consumed a certain degree, the liquid nitrogen in the liquid nitrogen container 1 can be automatically injected into the liquid nitrogen chamber 42, manual and regular disassembly is not needed, the problem that the liquid nitrogen is consumed due to poor sealing performance caused by regular disassembly is avoided, the cost is saved, time and labor are saved, and convenience and rapidness are achieved.
As an embodiment of the present invention, as shown in fig. 5 and 6: the automatic ejection mechanism 45 comprises a test tube rack 451, an electric telescopic rod 452, a moving slide block 453, a chute 454, a buffer mechanism 455 and a test tube placing hole 456; two sliding grooves 454 are symmetrically formed in two ends of the refrigerating box liner 44, an electric telescopic rod 452 is fixedly mounted at each of the left ends of the two sliding grooves 454, a moving slider 453 is fixedly mounted at the right end of the electric telescopic rod 452, one end of the moving slider 453 is fixedly connected with the test tube rack 451, test tube placing holes 456 are uniformly formed in the outer surfaces of the upper side and the lower side of the test tube rack 451, and a buffer mechanism 455 is arranged at the right end of the sliding groove 454; when the device works, when cells in the refrigerator need to be taken out, a worker needs to wear protective gloves and stretches into the refrigerator to take out test tubes on the test tube rack 451, the cells in the test tubes are poured into a culture dish in the operation box, then the test tubes are placed back into the refrigerator, the temperature in the refrigerator is very low, the worker needs to wear the protective gloves to prevent hands from being frozen or frostbitten, but the worker can not conveniently operate and easily cause errors by wearing the protective gloves, the invention conveniently and quickly takes out and places the test tubes by arranging the automatic ejection mechanism 45, when the test tubes in the refrigerator need to be taken out, the third box door 46 is opened, the electric telescopic rod 452 is started, the electric telescopic rod 452 drives the moving slide block 453 to move rightwards, the moving slide block 453 drives the test tube rack 451 connected with the moving slide block 453 to move rightwards, and the moving slide block 453 contacts the buffer mechanism 455 when moving to the right end of the chute 454, then, the test tube rack 451 is moved into the operation box, the test tube on the test tube rack 451 is taken out and poured into a culture dish, the test tube is placed back into the test tube rack 451, the electric telescopic rod 452 is started again, the electric telescopic rod 452 drives the moving slide block 453 to move leftwards, the moving slide block 453 drives the test tube rack 451 to move leftwards until the test tube rack 451 completely enters the cold storage box, the electric telescopic rod 452 is closed, and finally the third box door 46 is closed to finish taking and placing of the cells; accomplish the auto-eject of test-tube rack 451 through setting up auto-eject mechanism 45, when the staff need take out the cell in the test tube, need not dress heavier protective gloves again and stretch into the fridge in take out and put back the test tube, only need start electric telescopic handle 452 just can pop out test-tube rack 451 from the fridge in, can convenient and fast take out and put back the test tube, convenient and fast more, the mistake of wearing gloves probably to cause has been avoided, the staff hand has also been prevented to be frozen stiff or frostbite.
As an embodiment of the present invention, as shown in fig. 7, the buffer mechanism 455 includes a buffer washer 4551, a buffer spring 4552; the buffer spring 4552 is arranged inside the sliding groove 454, and one end of the buffer spring 4552 is fixedly connected with the inner surface of the refrigerating box liner 44, and the other end is fixedly connected with the buffer gasket 4551; in the working process, when a test tube is taken out, the automatic ejection mechanism 45 moves rightwards, when the test tube is moved to the rightmost end of the sliding groove 454, the moving slide block 453 can directly collide with the inner wall of the sliding groove 454, after the test tube is used for a long time, the automatic ejection mechanism 45 is abraded and damaged, and the service life of the automatic ejection mechanism 45 is shortened.
As an embodiment of the cell refrigerator for preventing cell contamination according to the present invention, as shown in fig. 8 and 9, the alarm mechanism 48 includes an alarm housing 481, a compression spring 482, a hollow housing 483, a conductive sheet 484, a sealing baffle 485, a buzzer 486, a sealing piston 487; the alarm shell 481 is fixedly connected with the lower end of the inner surface of the refrigerating box shell 41, and two compression springs 482 are symmetrically arranged at the edge position of the top end of the inner surface of the alarm shell 481; the lower ends of the two compression springs 482 are fixedly connected with a hollow shell 483, the inner surface of the alarm shell 481 is symmetrically and fixedly connected with two conducting strips 484 near the middle position, the inner surface of the alarm shell 481 is provided with through holes near the lower ends of the two conducting strips 484, the inner surface of the alarm shell 481 is fixedly connected with a closed baffle 485 near the lower end, the lower end of the closed baffle 485 is provided with a cavity, the outer surface of the lower end of the closed baffle 485 is fixedly connected with a buzzer 486, the buzzer 486 is arranged in the cavity, and the lower end of the buzzer 486 is provided with a sealing piston 487; when the electromagnetic valve 49 and the pressure pump 2 cannot normally work to cause that liquid nitrogen cannot be supplemented in the liquid nitrogen cavity 42 in time, and workers cannot find that the liquid nitrogen in the liquid nitrogen cavity 42 is completely consumed, so that the temperature in the refrigerating box is increased, and the refrigerating effect is poor, the electromagnetic valve 49 and the pressure pump 2 cannot normally work and are maintained and replaced in time by arranging the alarm mechanism 48, when the electromagnetic valve 49 and the pressure pump 2 cannot normally work, the liquid nitrogen cannot be supplemented in the liquid nitrogen cavity 42 in time to cause that the liquid nitrogen is continuously consumed, because the through hole is formed in the inner surface of the alarm shell close to the lower end of the conducting strip 484, the liquid nitrogen in the alarm shell 418 and the liquid nitrogen in the liquid nitrogen cavity 42 are communicated, the liquid level is continuously reduced along with the continuous consumption of the liquid nitrogen, and because the hollow shell 483 is a closed shell, the inside is filled with air, so the bulk density of hollow casing 483 is less than the density of liquid nitrogen, when the liquid level reduces to a certain extent, hollow casing 483 has partly float on the liquid level of liquid nitrogen, compression spring 482 moves hollow casing 483 downwards through the elastic potential energy that is obtained by the compression this moment, along with the continuous reduction of liquid level, hollow casing 483 constantly moves down, can touch conducting strip 484 at last, bee calling organ 486 switch-on circuit, send the alarm sound, when solenoid valve 49, the unable normal work of force pump 2, the staff can in time discover, change the maintenance, can not influence the cold-stored effect of fridge.
As an embodiment of the present invention, as shown in fig. 8 and 9, a sealing piston 487 is provided at a lower end of the buzzer 486, and the sealing piston 487 is screwed with the refrigerating case housing 41; when the buzzer 486 is damaged and cannot normally work, the buzzer 486 needs to be detached and replaced, the sealing piston 487 is arranged to detach and replace the buzzer 486, when the buzzer 486 is damaged, the sealing piston 487 is screwed to detach the sealing piston 487, then the buzzer 486 is replaced, the sealing piston 487 is a stepped piston, a gasket is arranged at a step of the piston to strengthen sealing, meanwhile, the outer surface of the piston, connected with the refrigerating box shell 41, is provided with threads, the piston is connected with the refrigerating box shell 41 through the threads, and the sealing effect is better.
As an embodiment of the present invention, as shown in fig. 1 to 3, an insulating layer 12 is nested on an outer surface of the refrigerator housing 41 for enhancing a refrigerating effect, and the insulating layer 12 is a member made of a glass fiber insulating cotton material; when the refrigerator works, liquid nitrogen is continuously gasified to absorb heat to ensure the refrigerating effect, the refrigerator shell 41 is externally embedded with the heat-insulating layer 12 to carry out heat preservation and enhance the refrigerating effect, the heat-insulating layer 12 is made of glass fiber heat-insulating cotton which has good heat-insulating property and is an excellent heat-insulating material, and the glass fiber cotton is made of glass which has high insulating property, has strong corrosion resistance and can not reduce the functional characteristics after being used for a long time, has good recovery property and is not afraid of impact vibration, the moisture absorption rate of the glass fiber is close to zero under the common condition, and the situation that the glass fiber is wet and cracked due to water absorption expansion is not worried about.
The using method comprises the following steps: when the liquid nitrogen controller is used, firstly, during normal work, liquid nitrogen in the liquid nitrogen cavity 42 is continuously consumed, the liquid level of the liquid nitrogen in the liquid nitrogen cavity 42 is also continuously reduced, the hollow metal ball 411 in the controller tube 43 floats on the liquid level of the liquid nitrogen, along with the continuous reduction of the liquid level of the liquid nitrogen, the hollow metal ball 411 is also continuously reduced along with the liquid level, when the liquid level of the liquid nitrogen is reduced to the electromagnetic valve opening controller 412, the hollow metal ball 411 contacts with the electromagnetic valve opening controller 412, the electromagnetic valve 49 is opened, the liquid nitrogen is continuously sent into the liquid nitrogen cavity 42 from the liquid nitrogen tank 1 through the liquid conveying pipe 3 by the pressure pump 2, the liquid level of the liquid nitrogen is continuously increased, the hollow metal ball 411 in the controller tube 43 is also continuously increased along with the increase of the liquid level, when the liquid level is increased to be close to the electromagnetic valve closing controller 410, the hollow metal ball 411 contacts with the electromagnetic valve closing controller 410, the electromagnetic valve 49 is closed, stopping inputting liquid nitrogen, finishing adding the liquid nitrogen, cutting off the electromagnetic valve 49 when the liquid nitrogen in the liquid nitrogen tank 1 is about to be consumed, then detaching the liquid nitrogen tank 1, injecting the liquid nitrogen, mounting, and electrifying the electromagnetic valve 49; when the test tube in the refrigerator needs to be taken out, the third door 46 is opened, the electric telescopic rod 452 is started, the electric telescopic rod 452 drives the moving slide block 453 to move rightwards, the moving slide block 453 drives the test tube rack 451 connected with the moving slide block to move rightwards, the moving slide block 453 contacts the buffer mechanism 455 when moving to the right end of the chute 454 and continues to move rightwards, the buffer spring 4552 is compressed to enable the automatic ejection mechanism 45 to slowly move rightwards, and finally, the test tube rack 451 is stopped at the position close to the rightmost end of the chute 454, then the test tube rack 451 is moved into the operation box, then the test tube on the test tube rack 451 is taken out and poured into a culture dish, then the test tube is put back into the test tube rack 451, the electric telescopic rod 452 is started again, the electric telescopic rod 452 drives the moving slide block 453 to move leftwards, the moving slide block 453 drives the test tube rack 451 to move leftwards until the test tube rack 451 completely enters the refrigerator, then the electric telescopic rod 452 is closed, finally, the third box door 46 is closed to complete the taking and placing of the cells; when the electromagnetic valve 49 and the pressure pump 2 can not work normally, the liquid nitrogen can not be supplemented in the liquid nitrogen chamber 42 in time, so that the liquid nitrogen is consumed continuously, the through hole is formed in the inner surface of the alarm shell body close to the lower end of the conducting strip 484, so that the liquid nitrogen in the alarm shell body 418 is communicated with the liquid nitrogen in the liquid nitrogen chamber 42, the liquid level is reduced continuously along with the continuous consumption of the liquid nitrogen, the hollow shell body 483 is a closed shell body, the interior of the hollow shell body 483 is filled with air, so that the whole density of the hollow shell body 483 is smaller than that of the liquid nitrogen, when the liquid level is reduced to a certain degree, a part of the hollow shell body 483 floats on the liquid level of the liquid nitrogen, at the moment, the compression spring 482 moves the hollow shell body 483 downwards through elastic potential energy obtained by compression, the hollow shell body 483 moves downwards along with the continuous reduction of the liquid level, and finally touches the conducting strip 484, the buzzer 486 is connected with a circuit to give an alarm, when the buzzer 486 is damaged, the sealing piston 487 is screwed, the sealing piston 487 is detached, and then the buzzer 486 is replaced.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A cell refrigerator for preventing cell contamination, comprising a liquid nitrogen tank (1), characterized in that: the device comprises a liquid nitrogen tank (1), a pressure pump (2) is fixedly connected to the position, close to one side of the lower end, of the annular outer surface of the liquid nitrogen tank (1), a liquid conveying pipe (3) is fixedly installed on the position, close to the other side of the lower end, of the annular outer surface of the liquid nitrogen tank (1), two operation holes (7) are symmetrically formed in the position, close to the right side, of the upper end outer surface of the operation box shell (5), a refrigeration box main body mechanism (4) is fixedly connected to one end of the liquid conveying pipe (3), a first box door (6) is rotatably connected to the middle position of the upper end outer surface of the operation box shell (5), a second box door (8) is rotatably connected to the upper end of the right side outer surface of the operation box shell (5) through a hinge, an arc-shaped handle (9) is fixedly connected to the position of the upper end edge of the right side outer surface of the second box door (8), a culture dish placing plate (10) is fixedly connected to the lower end of the inner surface of the operation box shell (5), and an ultraviolet irradiation lamp (11) is fixedly installed at the position, close to the middle, of the upper end of the inner surface of the operation box shell (5);
the refrigerator body mechanism (4) comprises a refrigerator shell (41), a liquid nitrogen cavity (42), a controller pipe (43), a refrigerator liner (44), an automatic ejection mechanism (45), a third refrigerator door (46), a refrigerator door handle (47), an alarm mechanism (48), an electromagnetic valve (49), an electromagnetic valve closing controller (410), a hollow metal ball (411) and an electromagnetic valve opening controller (412); the refrigerator comprises an operation box shell (5), a controller pipe (43) is vertically and fixedly installed at the position, close to the edge, of the left side of the inner surface of the refrigerator shell (41), the upper end of the inner surface of the controller pipe (43) is fixedly installed with an electromagnetic valve closing controller (410), the lower end of the inner surface of the controller pipe (43) is fixedly installed with an electromagnetic valve opening controller (412), a hollow metal ball (411) is arranged in a channel of the controller pipe (43) between the electromagnetic valve closing controller (410) and the electromagnetic valve opening controller (412), a refrigerator inner container (44) is fixedly installed at the right end of the inner surface of the refrigerator shell (41), and a liquid nitrogen cavity (42) is formed between the refrigerator shell (41) and the refrigerator inner container (44), the opening has been seted up to the right-hand member of fridge inner bag (44), and upper end border position rotates in the opening and installs third chamber door (46), the right-hand member surface of third chamber door (46) is close to border position fixed mounting and has chamber door handle (47), the inside intermediate position sliding connection of fridge inner bag (44) has automatic pop-up mechanism (45), the lower extreme central point of fridge casing (41) puts fixed mounting has alarm mechanism (48), the outer disc of transfer line (3) is close to the position fixed mounting of fridge casing (41) and has solenoid valve (49).
2. The cell freezer as claimed in claim 1, wherein the freezing chamber is formed by: the automatic ejection mechanism (45) comprises a test tube rack (451), an electric telescopic rod (452), a movable sliding block (453), a sliding groove (454), a buffer mechanism (455) and a test tube placing hole (456); two spouts (454), two have been seted up to the both ends symmetry of fridge inner bag (44) the equal fixed mounting in left end of spout (454) has electric telescopic handle (452), the right-hand member fixed mounting of electric telescopic handle (452) has removal slider (453), the one end and test-tube rack (451) fixed connection of removal slider (453), test tube placing hole (456) have evenly been seted up with the downside surface to the upside surface of test-tube rack (451), the right-hand member of spout (454) is provided with buffer gear (455).
3. The cell freezer as claimed in claim 2, wherein the freezing chamber is formed by: the buffer mechanism (455) comprises a buffer gasket (4551), a buffer spring (4552); the buffer spring (4552) is arranged inside the sliding groove (454), the inner surface of the refrigerating box liner (44) at one end of the buffer spring (4552) is fixedly connected, and the buffer gasket (4551) is fixedly connected at the other end of the buffer spring.
4. The cell freezer as claimed in claim 1, wherein the freezing chamber is formed by: the alarm mechanism 48 comprises an alarm shell (481), a compression spring (482), a hollow shell (483), a conducting strip (484), a closed baffle (485), a buzzer (486) and a sealing piston (487); the alarm shell (481) is fixedly connected with the lower end of the inner surface of the refrigerating box shell (41), and two compression springs (482) are symmetrically arranged at the edge position of the top end of the inner surface of the alarm shell (481); two the lower extreme fixedly connected with hollow casing (483) of compression spring (482), alarm casing (481) internal surface is close to intermediate position fixedly connected with conducting strip (484), alarm casing (481) internal surface is close to position fixedly connected with airtight baffle (485) of lower extreme, the through-hole has been seted up to the lower extreme of airtight baffle (485), and the outer fixed surface of the lower extreme of airtight baffle (485) is connected with bee calling organ (486), bee calling organ (486) sets up in the through-hole.
5. The cell freezer as claimed in claim 4, wherein the refrigerator further comprises: the lower end of the buzzer (486) is provided with a sealing piston (487), and the sealing piston (487) is in threaded connection with the refrigerating box shell (41).
6. The cell freezer as claimed in claim 1, wherein the freezing chamber is formed by: the outer surface of refrigerator casing (41) nests there is heat preservation (12) for strengthen cold-stored effect, heat preservation (12) are the component of the cotton material of glass fiber heat preservation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116580524A (en) * | 2023-07-11 | 2023-08-11 | 深圳市誉铭旺电子股份有限公司 | Alarm device for processing wire harness of new energy vehicle |
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| CN116580524A (en) * | 2023-07-11 | 2023-08-11 | 深圳市誉铭旺电子股份有限公司 | Alarm device for processing wire harness of new energy vehicle |
| CN116580524B (en) * | 2023-07-11 | 2023-09-12 | 深圳市誉铭旺电子股份有限公司 | Alarm device for processing wire harness of new energy vehicle |
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