CN115615071A - Automatic aseptic ice machine - Google Patents

Abstract

The present invention relates to an automatic aseptic ice maker, which may comprise: the upper part of the case is provided with a cold air cavity; a refrigeration unit mounted in the cabinet and in fluid communication with the cold gas cavity; a cooling groove installed in the cold air chamber and having a plurality of through holes on a bottom and a sidewall thereof; the first stirring device comprises a stirring disc, and the stirring disc is positioned in the cooling tank and can reciprocate up and down; and a plurality of second stirring devices which are installed to circumferentially surround an upper portion of the cooling bath and which include blades which are located in the cooling bath and are capable of reciprocating in a radial direction of the cooling bath.

Description

Automatic aseptic ice machine

Technical Field

The invention relates to the field of medical instruments, in particular to an automatic sterile ice maker.

Background

At present, in the medical field, the sterile physiological saline ice slurry is more and more widely applied, such as in the aspects of organ transplantation operation and the like. In the organ transplantation operation, the temporary preservation of organs needs to be in a sterile low-temperature environment, in the traditional operation application, the sterile normal saline ice slurry is frozen by normal saline and then is used, and a process is needed for taking out the sterile normal saline ice slurry from a refrigerator and then forming the sterile normal saline ice slurry again, so that the operation is complex and is easy to pollute; in addition, the ice mud formed by the existing ice making machine contains the ice with edges and corners, which is very easy to damage the soft tissues of the body.

The existing automatic ice making machines all adopt alcohol as an ice making medium, namely, a refrigerating unit cools the alcohol firstly, and then the alcohol cools physiological saline in an ice making basin to realize ice making. This method has a low heat exchange efficiency and the alcohol temperature is not low enough. Meanwhile, alcohol belongs to inflammable substances, potential safety hazards are easy to occur when the alcohol leaks, and some hospitals can not repeatedly use the specified alcohol for preventing pollution, so that the ice making cost is greatly increased.

In addition, because the existing automatic ice maker adopts a stirring mode that a stirring disc moves up and down, the part close to the side wall of the upper part of the cooling tank is not stirred, so that ice slag (ice with edges) is easy to appear, and the use of ice mud is influenced.

Disclosure of Invention

It is an object of the present invention to provide an automatic aseptic ice maker that solves the above problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an automatic aseptic ice maker can comprise:

the upper part of the case is provided with a cold air cavity;

a refrigeration unit mounted in the cabinet and in fluid communication with the cold gas cavity;

a cooling groove installed in the cold air chamber and having a plurality of through holes on a bottom and a sidewall thereof;

the first stirring device comprises a stirring disc, and the stirring disc is positioned in the cooling tank and can reciprocate up and down; and

a plurality of second stirring devices which are installed to circumferentially surround an upper portion of the cooling bath, and which include blades which are located in the cooling bath and are capable of reciprocating in a radial direction of the cooling bath.

Furthermore, the cold air chamber is enclosed by the heat preservation.

Further, the heat-insulating layer comprises a middle heat-insulating material and metal materials on two sides.

Further, the thickness of the heat insulating material is more than 20 times of the thickness of the metal material.

Further, the refrigeration unit comprises an evaporator and a fan, and the evaporator and the fan are installed in the cold air cavity.

Further, the fan is an axial fan.

Further, the blades are parallel to the inner wall of the cooling slot.

Further, the lower end edge of the blade is more than half the height of the cooling slot.

Further, the number of the second stirring devices is 4.

Further, the driving mechanisms of the first stirring device and the second stirring device are both electric.

Further, the driving mechanism comprises a motor, a crank link mechanism and a push rod, one end of the crank link mechanism is connected with an output shaft of the motor, the other end of the crank link mechanism is connected with one end of the push rod, and the stirring disc or the blade is fixed at the other end of the push rod.

Further, the cooling groove is provided with an annular clamping groove.

Further, the diameter of the stirring plate is 0.5 to 0.8 of the diameter of the cooling tank.

Further, the diameter of the through hole is 1-3 cm.

The invention adopts the technical proposal, has the advantages that,

1. the cold air replaces alcohol as the ice making medium, so that the problem of adopting alcohol as the refrigerating medium is solved, and the temperature in the cold air cavity can reach minus forty degrees, so that the heat exchange speed is improved, the time required by ice making is reduced, and the ice making efficiency is improved;

2. through setting up first agitating unit and second agitating unit, can improve the quality of ice slush, the soft no ice sediment of ice slush, also can accelerate ice making speed simultaneously, improve ice making efficiency.

Drawings

FIG. 1 is a perspective view of an automated sterile ice maker of the present invention;

FIG. 2 is a top plan view of the automated sterile ice maker shown in FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view of the automated sterile ice maker taken along line A-A of FIG. 2;

fig. 4 is a perspective view of a first stirring device of the automatic sterile ice maker shown in fig. 1.

Fig. 5 is a perspective view of a second stirring device of the automatic sterile ice maker shown in fig. 2.

Detailed Description

The objects, features and advantages of the present invention will be more clearly understood from the following detailed description of the preferred embodiments of the present invention taken in conjunction with the accompanying drawings. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be interpreted as words of convenience and should not be interpreted as limiting terms.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

As shown in fig. 1 to 3, an automatic aseptic ice maker can include a cabinet 1, a refrigerator group, a cooling tank 3, a first stirring device 4, and a second stirring device 5. The chassis 1 is a rectangular parallelepiped structure and is mainly made of sheet metal (e.g., aluminum profile or steel). The upper part of the case 1 is provided with a cold air chamber 11. The left and right sides of the casing at the lower part of the cabinet 1 are provided with heat radiating holes 12. The refrigerator unit is installed in the cabinet 1 and is in fluid communication with the cool air chamber 11, i.e., the refrigerator unit provides cool air to the cool air chamber 11. The cooling bath 3 is installed in the cooling-air chamber 11 and has a plurality of through-holes 31 on the bottom and side walls thereof. That is, the cooling bath "bathes" in cool air. In ice making, a disposable film (not shown) is laid in the cooling bath 3 and the upper end is sealed to the upper peripheral edge of the cooling bath 3 to form a container required for ice making. That is, the cooling bath 3 functions to support the disposable film. The cold air in the cold air chamber 11 exchanges heat with the sterile liquid (e.g., physiological saline) in the disposable film through the wall of the cooling bath 3 and the through-holes 31, thereby achieving ice making. The first stirring device 4 includes a stirring plate 41, and the stirring plate 41 is located in the cooling bath 3 and can reciprocate up and down. That is, the first stirring device 4 can jack up and put down the disposable aseptic film to realize the stirring of the physiological saline, thereby accelerating the ice making speed and improving the uniformity of the ice slush. Four second stirring devices 5 are installed circumferentially around the upper portion of the cooling bath 3 at 90 degrees from each other. Specifically, four second stirring devices 5 are installed at four corners of the cabinet 1. It should be understood that the number of second stirring devices 5 is not limited to 4, and may be 2, 3 or 5, etc. The second stirring device 5 includes a blade 51, and the blade 51 is located in the cooling bath 3 and can reciprocate in the radial direction of the cooling bath 3. Thus, hard ice debris (angular ice) near the upper side walls of the cooling bath can be avoided. Through first agitating unit 4 and second agitating unit 5, can ensure that the ice slush of making is even soft, does not have hard ice sediment, and the ice-making speed is comparatively fast simultaneously.

The cold air chamber 11 is surrounded by the heat insulation layer, thereby avoiding the heat exchange between the surrounding environment and the cold air chamber 11 and achieving the purpose of saving energy consumption. That is, each wall surface of the cooling air chamber is made of an insulating layer. Specifically, the insulating layer includes an insulating material 111 in the middle and a metal material 112 on both sides to ensure both an insulating effect and sufficient strength. The thickness of the heat insulating material 111 is usually 20 times or more the thickness of the metal material 112, and for example, the thickness of the heat insulating material is 5cm and the thickness of the metal material is 1.5mm. The heat insulating material may be polyurethane foam, heat insulating cotton, etc. The metal material may be an aluminum plate, a stainless steel plate, or the like.

The refrigeration unit may include a compressor (not shown), a condenser 21, an evaporator 22, and a fan 23. Wherein a compressor and a condenser 21 are installed at a lower portion of the cabinet 1, and an evaporator 22 and a fan 23 are installed in the cooling air chamber 11. Specifically, the evaporator 22 is fixedly installed on the right sidewall of the cooling air chamber 11, and the fan 23 is fixedly installed on the evaporator 22. The fan 23 circulates the air in the cold air chamber past the fins of the evaporator 22 for cooling. The construction and connection of the compressor, condenser 21 and evaporator 22 are well known and will not be described in detail herein. Preferably, the fan 23 is an axial fan.

The cooling tank 3 has a cylindrical shape and may be made of stainless steel or the like. The diameter of the through-hole 31 of the cooling channel 3 is 1-3 cm, preferably 2 cm. The external air can enter the cooling air chamber 11 through the through-holes 31. When ice is made, the cold air in the cold air chamber 11 can contact the disposable film through the through holes 31, thereby cooling the physiological saline in the disposable film.

The upper end of the cooling channel 3 has a flange 32 so that the cooling channel 3 can be suspended in the top opening of the cooling air chamber 11 to facilitate access to the cooling channel 3. An annular groove 33 is formed on the outer wall of the cooling tank 3 near the upper end (i.e., the flange 32) to facilitate fixing of the disposable film. Specifically, when ice is made, the disposable film is put on the ring slot 33, and then the disposable film bundle opening is fixed in the ring slot 33 by a rubber band or a rope.

The first stirring device 4 and the second stirring device 5 can be operated in a staggered manner. Accordingly, the four second stirring devices 5 may be operated simultaneously, sequentially or in groups. The stirring speed of the first stirring device 4 and the second stirring device 5 is not too fast, and is usually about 30 times per minute. The first stirring device 4 and the second stirring device 5 are similar in structure and will be described in detail below.

As shown in fig. 3 and 4, the first stirring device 4 includes a driving mechanism and a stirring plate 41, and the stirring plate 41 is driven to reciprocate up and down by the driving mechanism. Preferably, the drive mechanism is electric to facilitate control. Specifically, the driving mechanism comprises a motor 42, a first connecting rod 43, a second connecting rod 44 and a push rod 45, the motor 42 is fixed on a motor mounting seat 46, an output shaft of the motor 42 is supported through a bearing, one end of the first connecting rod 43 is fixed on an output shaft of a motor 52, the other end of the first connecting rod is hinged to one end of the second connecting rod 44, the other end of the second connecting rod 44 is hinged to the lower end of a push rod 55, and a stirring disc 51 is fixed at the upper end of the push rod 55. Specifically, both ends of the second link 44 are hinged with the first link 43 and the push rod 42 through respective knuckle bearings. The first link 43 and the second link 44 constitute a crank link mechanism; the rotation of the motor 4 is converted into the up-and-down movement of the push rod 45 by the crank link mechanism. The motor 42 may be a motor with a reducer. Preferably, the motor 42 is a servo motor or a stepper motor. It should be understood that the drive mechanism is not limited to the illustrated embodiment, and for example, an electric push rod or an electric linear slide plus push rod configuration may be employed. In order to avoid the shaking of the push rod 45, at least one linear bearing 47 is sleeved on the push rod 45.

The stirring plate 41 is detachably and fixedly installed at the upper end of the push rod 45 so as to be convenient for replacing different stirring plates. Specifically, the stirring plate 41 has a central mounting hole 411, and the upper end of the push rod 45 is provided with a screw hole. The agitating plate 41 may be fixed to the upper end of the push rod 45 by screwing into the central mounting hole 411 and the screw hole. In the present embodiment, the stirring plate 41 is circular. It should be understood that the stir plate can be other shapes as well. The stirring plate 41 may be made of stainless steel or the like. The stirring plate 41 needs to have a relatively large area to provide a sufficient supporting area to ensure the stirring effect. Preferably, the diameter of the stirring plate 41 is 0.5 to 0.8 of the diameter of the cooling bath 3.

As shown in fig. 3 and 5, the second stirring device 5 includes a driving mechanism and a blade 51, and the blade 51 is driven by the driving mechanism to reciprocate in the radial direction of the cooling bath 3. Preferably, the drive mechanism is electric to facilitate control. Specifically, the driving mechanism comprises a motor 52, a first connecting rod 53, a second connecting rod 54 and a push rod 55, the motor 52 is fixed on a motor mounting plate 56, one end of the first connecting rod 53 is fixed on an output shaft of the motor 52, the other end of the first connecting rod is hinged to one end of the push rod 55, and the blade 51 is fixed on the other end of the push rod 65. Specifically, both ends of the second link 54 are hinged with the first link 53 and the push rod 52 through respective joint bearings. The first link 53 and the second link 54 constitute a crank link mechanism; the rotation of the motor 52 is converted into the radial reciprocating motion of the push rod 55 by the crank link mechanism. The motor 52 may be a motor with a speed reducer. Preferably, the motor 52 is a servo motor or a stepper motor. It should be understood that the drive mechanism is not limited to the illustrated embodiment, and for example, an electric push rod or electric linear slide plus push rod configuration may be employed. In order to avoid the shaking of the push rod 55, at least one linear bearing 57 is sleeved on the push rod 55.

The blade 51 is provided with a mounting hole 511, and the push rod 55 can be fixedly connected with the blade 51 through a screw. Therefore, the blade 51 can be very easily attached and detached. Preferably, the blades 51 are parallel to the inner wall of the cooling tank 3, that is, the blades 51 are arc-shaped, so that the blades 51 can be in close contact with the disposable sterile film, and the disposable sterile film is prevented from being broken. The lower end edge of the vane 51 is at least half the height of the cooling groove 3. That is, the height of the blade 51 is less than 1/2 of the height of the cooling groove 3. The blade 61 may be made of stainless steel or the like. The thickness of the blade 61 may be about 1mm to have sufficient strength. The blades 61 are sized such that when the blades 61 are at their maximum travel, the gap between the blades 61 is small (e.g., less than 1 cm), which ensures that the disposable sterile film is pushed by the blades 51 and prevents the ice from being deposited.

The operation of the present invention will be briefly described below. Firstly, a disposable film is laid in a cooling tank 3 and fixed by a rubber band mouth, and then a certain amount of normal saline is poured; and finally, pressing an automatic ice making button to finish automatic ice making. Whole operation is very convenient, adopts the mode of air bath simultaneously, can solve the problem that adopts alcohol to exist as the refrigeration medium on the one hand, and on the other hand has improved heat transfer speed because the temperature in the cold air chamber can reach forty degrees below zero, has reduced the required time of ice-making, has improved ice-making efficiency. And through setting up first agitating unit and second agitating unit, can improve the quality of ice slush, the ice slush is soft and does not have the ice cinder, also can accelerate ice making speed simultaneously, improves ice making efficiency.

While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that various changes and modifications of the invention can be effected therein by those skilled in the art after reading the above teachings of the invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (10)

1. An automated, aseptic ice-making machine, comprising:

the upper part of the case is provided with a cold air cavity;

a refrigeration unit mounted in the cabinet and in fluid communication with the cold gas cavity;

a cooling bath installed in the cooling air chamber and having a plurality of through-holes on a bottom and a sidewall thereof;

the first stirring device comprises a stirring disc, and the stirring disc is positioned in the cooling tank and can reciprocate up and down; and

a plurality of second stirring devices installed to circumferentially surround an upper portion of the cooling bath, and including blades located inside the cooling bath and capable of reciprocating in a radial direction of the cooling bath.

2. The automatic aseptic ice-making machine of claim 1, wherein said cold air chamber is surrounded by an insulating layer.

3. The automated sterile ice-making machine of claim 2, wherein said insulation comprises a middle insulation and two sides of metal material.

4. The automated, aseptic ice-making machine of claim 1, wherein said blades are parallel to the inner walls of said cooling tank.

5. The automated, aseptic ice-making machine of claim 4, wherein the lower end edge of said blade is more than half the height of said cooling tank.

6. The automated, aseptic ice-making machine of claim 1, wherein said refrigeration unit includes an evaporator and a fan, said evaporator and said fan being mounted within said cold air chamber.

7. The automated, aseptic ice-making machine of claim 6, wherein said fan is an axial fan.

8. The automatic aseptic ice-making machine of claim 1, wherein the drive mechanisms of said first and second agitation devices are both electrically powered.

9. The automated, aseptic ice-making machine of claim 8, wherein said drive mechanism comprises a motor, a crank-link mechanism and a push rod, said crank-link mechanism having one end connected to an output shaft of said motor and the other end connected to one end of said push rod, said agitator disk or said blade being fixed to the other end of said push rod.

10. The automated, aseptic ice-making machine of claim 1, wherein said cooling tank has an annular neck.

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