CN112484358A

CN112484358A - Automatic aseptic ice machine

Info

Publication number: CN112484358A
Application number: CN202011506071.0A
Authority: CN
Inventors: 方海鹰
Original assignee: Xiamen Guoyi Science Apparatus Co ltd
Current assignee: Xiamen Guoyi Science Apparatus Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-12

Abstract

The invention discloses an automatic sterile ice maker, which comprises a rack, a cooling tank, an ice making basin and a refrigerating unit, wherein the cooling tank is arranged at the top of the rack; the automatic sterile ice maker further comprises a stirring scraper which is hung in the ice making basin and used for stirring ice mud in the ice making basin when the ice making basin rotates and scraping the ice mud attached to the inner wall of the ice making basin. The invention can realize automatic stirring and ice scraping, greatly shorten the time for manufacturing the ice slush, improve the production efficiency and ensure that the manufactured ice slush has better quality.

Description

Automatic aseptic ice machine

Technical Field

The invention relates to the field of medical instruments, in particular to an automatic sterile ice maker for making ice slush used in surgery.

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, ice with edges and corners exists in ice slush formed by the existing ice making machine, so that the ice slush is very easy to damage organism soft tissues.

Most of the existing aseptic ice making machines adopt manual stirring in the ice making process to avoid ice slush agglomeration. However, manual stirring increases the workload of medical staff on the one hand, and is not uniform on the other hand, or ice residue may occur. In addition, during the ice making process, the ice is usually frozen on the inner wall of the ice making basin, and the heat exchange efficiency with the refrigerating medium is affected.

Disclosure of Invention

The present invention aims to provide an automatic aseptic ice maker to solve the above technical problems. Therefore, the invention adopts the following specific technical scheme:

an automatic sterile ice maker comprises a frame, a cooling tank, an ice making basin and a refrigerating unit, wherein the cooling tank is arranged at the top of the frame, the refrigerating unit is arranged in the frame and is in fluid communication with a cooling pipe coiled on the outer wall of the cooling tank for cooling the cooling tank, the ice making basin is rotatably arranged in the cooling tank, a driven gear is fixed at a position close to the top of the ice making basin, the driven gear is meshed with a driving gear fixed on a rotating shaft, and the rotating shaft is connected with an output shaft of a motor arranged in the frame; the automatic sterile ice machine further comprises a stirring scraper which is hung in the ice making basin and used for stirring ice mud in the ice making basin when the ice making basin rotates and scraping the ice mud attached to the inner wall of the ice making basin.

Furthermore, a plurality of stirring blades are fixedly arranged on the outer wall of the ice making basin and used for stirring the refrigerating medium in the cooling tank.

Further, the stirring blades are long strips extending axially.

Further, the number of the stirring blades is 2-6.

Further, the stirring scraper comprises a plate-shaped main body and a hanging rod fixed at the top end of the plate-shaped main body, wherein the hanging rod is used for being matched with hanging grooves fixed in two mounting seats at the top of the rack so as to realize that the stirring scraper is hung in the ice making basin.

Further, the edge of the plate-shaped main body contacting with the ice making basin is in a tooth-shaped structure.

Furthermore, a hollow structure is arranged on the plate-shaped main body.

Furthermore, the specific structure that the ice making basin is rotatably placed in the cooling tank is that a positioning shaft extending downwards is arranged at the center of the bottom of the ice making basin, and the positioning shaft is detachably connected with a bearing fixed in a positioning seat in the rack.

Further, the automatic sterile ice maker further comprises a jacket, wherein the jacket is fixedly surrounded with the cooling tank, a closed cavity is formed between the jacket and the cooling tank, and the closed cavity is filled with a refrigerating medium.

Furthermore, hollow holes are formed in the side wall and/or the bottom surface of the cooling groove, so that the closed cavity is communicated with the refrigerating medium in the cooling groove.

Furthermore, a heat-insulating layer is wrapped outside the jacket.

Further, the cooling tank is made of stainless steel.

Further, the bottom of the frame is provided with casters.

By adopting the technical scheme, the invention has the advantages that the automatic stirring of the stirring scraper replaces the manual stirring of medical staff, the stirring efficiency is greatly improved, and the prepared ice slush has uniform and soft particle size and no ice slag.

Drawings

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

FIG. 1 is a schematic diagram of an automated sterile ice maker according to an embodiment of the present invention;

FIG. 2 is a perspective view of one embodiment of an ice making basin of the automated sterile ice maker shown in FIG. 1;

FIG. 3 is a perspective view of another embodiment of an ice making basin of the automated sterile ice maker shown in FIG. 1;

FIG. 4 is a perspective view of an agitating blade and its mounting base of the automated sterile ice maker shown in FIG. 1;

fig. 5 is a perspective view of the stirring blade shown in fig. 3 suspended in the ice making tub of the automatic aseptic ice maker shown in fig. 2.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

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.

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.

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.

As shown in fig. 1 to 5, an automatic aseptic ice maker 1 for making ice slush from aseptic physiological saline. The automatic aseptic ice maker 1 may include a housing 10, a cooling bath 20, an ice making tray 30, a stirring blade 40, a refrigerator group, and the like. The chassis 10 is a substantially rectangular box, and may be made of a metal material such as stainless steel, aluminum, or an alloy thereof, or a non-metal material such as hard plastic. The bottom of the housing 10 is mounted with a ground caster 11 to facilitate the movement of the ice maker. A cooling tank 20 is installed at the top of the housing 10 to contain a refrigerant. The ice making tub 30 is rotatably installed in the cooling bath 20, and a driven gear 31 is fixed to a position near the top thereof, the driven gear 31 being engaged with a driving gear 61 fixed to a rotation shaft 62, the rotation shaft 62 being connected to an output shaft of a motor 63 installed in the housing 1. Accordingly, the motor 63 is rotated, and the ice making tray 30 may be rotated. The ice making tub 30 is used to contain a sterile liquid (e.g., physiological saline) and make it into ice slush as desired. In use, the stirring blade 40 is hung in the ice making tub 30 to stir the ice slush in the ice making tub 30 while scraping off the ice slush adhered to the inner wall of the ice making tub 30 when the ice making tub 30 is rotated. The refrigerator group is installed in the housing 10 in fluid communication with a cooling pipe 50 wound on an outer wall of the cooling bath 20 for cooling the cooling bath 20. The refrigeration unit generally includes a condenser 51, a compressor 52, a restriction 53, etc., the construction of which is well known and will not be described herein. The invention replaces the manual stirring of medical staff by the automatic stirring of the stirring scraper 40, greatly improves the stirring efficiency, and the prepared ice slush has uniform and soft particle size and no ice slag.

As shown in fig. 1 and 3, a plurality of stirring blades 32 are fixedly provided on an outer wall of the ice making tub 30. In the ice making process, along with the rotation of the ice making basin 30, the stirring blades 32 stir the refrigeration medium 100 in the cooling tank 20, so that the heat exchange speed between the refrigeration medium 100 and the ice making basin 30 is increased, the heat exchange efficiency is improved, the ice slush making time is shortened, and the energy consumption is reduced. Preferably, the mixing blades 32 are axially extending elongated strips, which may be 2-6 in number, evenly spaced circumferentially. The agitating blade 32 may be fixed to the ice making tub 30 by welding.

The ice making tray 30 is rotatably installed in the cooling tub 20 in a specific structure that a positioning shaft 33 extending downward is provided at the center of the bottom of the ice making tray 30, and the positioning shaft 33 is detachably connected (e.g., by a key-and-groove fit) to a bearing fixed in a positioning seat 70 in the housing 1. The positioning shaft 33 is fitted with a corresponding seal ring to seal the cooling tank 20 from leakage of the refrigerant medium 100.

As shown in fig. 4 and 5, the stirring blade 40 includes a plate-shaped body 41 and a hanging bar 42 fixed to a tip end of the plate-shaped body 41. The plate-like body 41 and the hanging rod 42 may be fixed by welding or the like, or may be integrally formed. The plate-shaped body 41 may be made of a metal material or a non-metal material. Preferably, the plate-shaped body 41 is made of polycarbonate material. The plate-shaped body 41 is sized such that, when it is hung in the ice making tub 40, both sides and a bottom side thereof are in contact with the ice making tub 30 to be able to scrape off an ice layer attached to the ice making tub 30. Preferably, edges (i.e., both sides and bottom side) of the plate-shaped body 41 contacting the ice making tray 30 are tooth-shaped structures. In order to reduce the resistance, the plate-shaped body 41 may be provided with a hollow structure (regular or irregular through holes). Hanger bar 42 may be a square bar. Both ends of the hanging bar 42 are fitted with hanging grooves 431 fixed in two mounting seats 43 at the top of the housing to accomplish the hanging of the stirring blade 40 in the ice making tub 30. The mounting seat 43 may be fixed to the frame 1 by means of screws or the like. Hanging groove 431 is a rectangular groove sized such that hanging bar 42 is restrained therein from moving forward, backward, left, and right.

Returning to fig. 1, the automatic aseptic ice maker 1 may further include a jacket 80 that is fixed (by welding) around the cooling tank 20 and forms a closed cavity with the cooling tank 20, the closed cavity being filled with the refrigerant medium 100. Therefore, the cooling tank 20 can be sufficiently and uniformly cooled, thereby improving the heat exchange efficiency and reducing the energy consumption. Preferably, the side wall and/or the bottom surface of the cooling tank 20 is provided with a hollowed hole, so that the refrigeration medium 100 in the cooling tank 20 can enter the closed cavity between the jacket 80 and the cooling tank 20 through the hollowed hole. The refrigerant 100 in the cooling tank 20 is in direct contact with the cooling pipe 50, and the heat exchange efficiency is further improved.

Preferably, the closed cavity is not too large or too small, and generally, the width of the closed cavity is 5 to 10 mm, that is, the diameter of the jacket 80 is 5 to 10 mm larger than that of the cooling tank 20.

Further, the jacket is wrapped with a layer of heat insulation layer 90 to isolate the jacket 80 from the surrounding environment, so as to avoid heat exchange between the surrounding environment and the jacket 80, and achieve the purpose of saving energy consumption. In a preferred embodiment, the insulation layer 90 may include a polyurethane foam layer, a polyethylene insulation board, and an insulation tape, which are sequentially arranged from the inside to the outside. Preferably, the thickness ratio among the polyurethane foam layer, the polyethylene insulation board and the thermal insulation tape is 3:3: 1. The structure is stable and reliable, and the heat preservation performance is good. In addition, the total thickness of the insulating layer 90 may be, for example, 10 to 50 mm.

Preferably, the refrigeration medium 100 is a non-toxic fluid, such as pure alcohol or 75% medical grade alcohol, having a freezing point substantially below that of the sterile liquid used to make the ice slush.

Preferably, the cooling bath 20 and the jacket 80 may be made of a good heat conductor such as copper, aluminum, stainless steel, or an alloy thereof.

In addition, the automatic aseptic ice maker 1 may further include a temperature sensor and a temperature display device. The temperature sensor is used for detecting the temperature of the ice making basin or the refrigerating medium and transmitting a signal to the temperature display device for displaying. The temperature sensor may be a resistance temperature sensor, a thermocouple temperature sensor, a thermistor, or the like. The temperature display device is typically mounted on the top or upper side of the housing 10 in a position that is easily visible to the user. The temperature display device can also set an early warning temperature, namely, when the set temperature is reached, the temperature display device prompts by sound, sound and light, or twinkling and the like. The automated sterile ice maker 1 is also provided with a corresponding operating panel (e.g., a touch screen) which is mounted on a suitable position of the housing 1.

The operation of the automatic aseptic ice maker of the present invention is briefly described as follows: the stirring blade 40 and the ice making tub 30 are taken out for sterilization, for example, by high temperature; placing the ice making tub 30, which is sterilized and cooled to a normal temperature, into the cooling bath 20, and engaging the driven gear thereof with the driving gear; placing a quantity of a refrigeration medium (e.g., about 2L of 50% alcohol) into the cooling tank 20; the automated sterile ice maker is turned on to bring the temperature of the refrigeration medium down to a predetermined temperature (e.g., 4 degrees); injecting sterile normal saline into a sterile ice making basin; then, the stirring scraper 40, which is sterilized and cooled to a normal temperature, is installed on the mounting seat so as to be suspended in the ice making tub 30; and finally, the motor 63 is started to automatically make ice.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An automatic aseptic ice maker comprising a frame, a cooling tank, an ice making tray and a refrigeration unit, the cooling tank being mounted at the top of the frame, the refrigeration unit being mounted in the frame in fluid communication with a cooling tube coiled around the outer wall of the cooling tank for cooling the cooling tank, characterized in that: the ice making basin is rotatably arranged in the cooling tank, a driven gear is fixed at the position close to the top of the ice making basin, the driven gear is meshed with a driving gear fixed on a rotating shaft, and the rotating shaft is connected with an output shaft of a motor arranged in the rack; the automatic sterile ice machine further comprises a stirring scraper which is hung in the ice making basin and used for stirring ice mud in the ice making basin when the ice making basin rotates and scraping the ice mud attached to the inner wall of the ice making basin.

2. The automated, aseptic ice-making machine of claim 1, wherein: and a plurality of stirring blades are fixedly arranged on the outer wall of the ice making basin and used for stirring the refrigerating medium in the cooling tank.

3. The automated, aseptic ice-making machine of claim 2, wherein: the stirring blade is a long strip plate extending axially.

4. The automated, aseptic ice-making machine of claim 2, wherein: the number of the stirring blades is 2-6.

5. The automated, aseptic ice-making machine of claim 1, wherein: the stirring scraper comprises a plate-shaped main body and a hanging rod fixed on the top end of the plate-shaped main body, wherein the hanging rod is used for being matched with hanging grooves fixed in two mounting seats at the top of the rack so as to realize that the stirring scraper is hung in the ice making basin.

6. The automated, aseptic ice-making machine of claim 5, wherein: the edge of the plate-shaped main body, which is contacted with the ice making basin, is of a tooth-shaped structure.

7. The automated, aseptic ice-making machine of claim 5 or 6, wherein: the plate-shaped main body is provided with a hollow structure.

8. The automated, aseptic ice-making machine of claim 1, wherein: the specific structure that the ice making basin can be rotatably placed in the cooling tank is that a positioning shaft extending downwards is arranged at the center of the bottom of the ice making basin, and the positioning shaft is detachably connected with a bearing fixed in a positioning seat in the rack.

9. The automated, aseptic ice-making machine of claim 1, wherein: the automatic sterile ice maker also comprises a jacket, wherein the jacket is fixedly surrounded with the cooling tank, a closed cavity is formed between the jacket and the cooling tank, and the closed cavity is filled with a refrigeration medium.

10. The aseptic ice-making machine of claim 9, wherein: and hollow holes are formed in the side wall and/or the bottom surface of the cooling groove, so that the closed cavity is communicated with the refrigerating medium in the cooling groove.