RU189291U9 - AUTOMATIC AIR STERILIZER FOR INSTRUMENTS IN INDIVIDUAL PACKAGING - Google Patents

Abstract

The utility model relates to devices for dry-air sterilization of various instruments with dry hot air, specifically for disinfection, sterilization, drying and cooling of manicure instruments and other products resistant to temperatures up to 200°C in individual packaging, including in kraft bags. The technical result consists in increasing the productivity of the sterilizer due to a more efficient and ergonomic layout of the parts of the sterilizer, in particular, due to the execution of the heater (23) in the form of a rectangular tubular circuit, which can significantly improve the convection inside the sterilization chamber (4), and the installation of a thermal pad ( 38) between the sterilization chamber (4) and the base of the convection fan (37) reduces heat loss. The increase in the useful working volume of the sterilization chamber (4) is achieved due to the proposed ratio of the width and depth of the shelves (36). The sterilizer is adapted to accommodate up to two 20×10 cm kraft bags on each shelf (36), thanks to the width and depth of the shelf of 23 cm. , as well as due to the new arrangement of the elements of the control panel (1) and the location of the panel (1) on the inclined surface of the control unit (2), which makes the choice of sterilization programs more understandable and convenient. The heat-resistant handle (18) allows you to safely open the door (5) of the sterilization chamber (4). In addition, the placement of the control unit (2) on the upper surface of the body (3) makes it possible to achieve a ratio of the shelf width (36) to the sterilizer width of more than 0.75 and reduces the space occupied by the sterilizer on the desktop. The delayed start function allows, after selecting a sterilization program, to delay the start of the sterilization cycle for the required time. The claimed design of the sterilizer provides noise reduction due to the use of an axial impeller (27) for cooling the convection fan (29) on the back of the sterilizer. Noise reduction is also achieved through the use of adjustable rear legs (7) of the body in the design. Since the rotating shaft may have a backlash, when the sterilizer is not leveled, during the operation of the sterilizer, excessive vibrations occur at the shaft, which in the claimed design can be removed by leveling the sterilizer body by level, due to adjustable rear legs (7).

Description

The utility model relates to devices for dry-air sterilization of various instruments with dry hot air, specifically for disinfection, sterilization, drying and cooling of manicure instruments and other products resistant to temperatures up to 200°C in individual packaging, including in kraft bags.

An air sterilizer is known (patent No. 2083225, 1992, patentee Peskov N.E.), containing a control unit, a housing made of heat-insulating material, a working chamber formed by a heat pipe, the walls of which are made double with the formation of a sealed cavity, the inner surface of which covered with a material having a capillary structure. The cavity of the working chamber is filled with low-boiling coolant, for example, naphthalene. Heating elements are located in the lower part of the hermetic cavity. On the inner surface of the heat pipe, supporting elements are installed, in particular in the form of corners, for placing pallets with sterilized products. The disadvantage of this device is low performance due to the small capacity of the chamber and limited functionality due to the inability to automatically control the rate of temperature rise to a predetermined value and a long sterilization time.

An air sterilizer is known, comprising a housing with a sterilization chamber for placing an object of sterilization in it, a heater, a fan, a temperature sensor, a sterilization time meter, a computing device configured to control and adjust the sterilization process by adjusting the heater power and the sterilization time (see Air sterilizer GP-10-MO Internet site http://www.kaspz.ru/product_45.html). Known sterilizer is not able to provide sufficient sterilization performance, ease of use, comfort of staff and customers, ease of use, as well as safety in modern realities, due to its inability to tools placed in individual packaging.

The proposed utility model "Automatic air sterilizer for instruments in individual packaging (hereinafter referred to as the Sterilizer) is aimed at solving a technical problem, which consists in increasing productivity, improving operating conditions, by reducing the noise level and improving ergonomic performance.

The technical problem is solved due to the fact that in a well-known sterilizer containing a housing with a sterilization chamber, equipped with a door, a control unit, a heater, a fan, a temperature sensor, according to the claimed solution, the control unit is located on the upper surface of the sterilizer housing, the sterilizer housing is provided with legs, with In this case, the rear legs are adjustable in height, the heater is made in the form of a rectangular tubular circuit located along the rear wall of the sterilization chamber, in the center of the rear wall of the sterilization chamber, a diagonal fan impeller and an axial impeller are mounted on a rotating shaft, while the diagonal impeller is located inside the sterilization chamber and separated from it by a grid, and the axial impeller is located on the outside of the sterilization chamber. And also due to the fact that between the door and the body of the sterilizer there is a thermal pad, while the door is equipped with a heat-resistant handle, and a locking mechanism is installed on the body of the sterilizer, and thermal pads are installed between the back wall of the sterilization chamber and the base of the convection fan, in addition, the control unit is made in the form trapezoidal prism, and the control panel is located on the inclined surface of the control box, while the ratio of the width of the shelves to the width of the sterilizer body is more than 0.75. The sterilizer can be equipped with an alarm system and shutdown when the temperature in the sterilization chamber is exceeded, made in the form of a thermostatic sensor, a delayed start function and a sound and light alarm system for operating modes.

An increase in the productivity of the sterilizer is achieved due to a more efficient and ergonomic layout of the parts of the sterilizer, in particular, due to the execution of the heater in the form of a rectangular tubular circuit, which can significantly improve convection inside the sterilization chamber, and the installation of a thermal pad between the sterilization chamber and the base of the convection fan makes it possible to reduce heat loss. An increase in the useful working volume of the sterilization chamber is achieved due to the proposed ratio of the width and depth of the shelves. The sterilizer is adapted to accommodate up to two kraft bags, 20×10 cm in size on each shelf, thanks to the width and depth of the shelf of 23 cm. control panel and the location of the panel on the inclined surface of the control unit, which makes the choice of sterilization programs more understandable and convenient. The heat-resistant handle allows you to safely open the sterilization chamber door. In addition, the placement of the control unit on the upper surface of the housing allows you to achieve a ratio of shelf width to sterilizer width of more than 0.75 and reduces the space occupied by the sterilizer on the desktop. The delayed start function allows, after selecting a sterilization program, to postpone the start of the sterilization cycle for the required time. The claimed design of the sterilizer provides noise reduction due to the use of an axial impeller for cooling the convection fan on the back of the sterilizer. Noise reduction is also achieved through the use of adjustable rear legs of the case in the design. Since the rotating shaft may have a backlash, when the sterilizer is not leveled, during the operation of the sterilizer, excessive vibrations occur at the shaft, which in the claimed design can be removed by leveling the sterilizer body by level, due to adjustable rear legs.

The claimed solution is illustrated by graphic materials, on which:

In FIG. 1 - a general view of the sterilizer

In FIG. 2 - shows the side view of the sterilizer

In FIG. 3 - the view of the sterilizer without a door is shown

In FIG. 4 - a sectional view of the sterilizer

In FIG. 5 - shows the rear view of the sterilizer without the back wall of the housing

In FIG. 6 - shows a general view of the control panel

In FIG. 7 shows the thermal pad between the sterilization chamber and the base of the convection fan.

The sterilizer (Fig. 1, Fig. 2) consists of a housing (3), a control unit (2), on which the control panel (1) is located. Inside the body of the sterilizer (3) there is a sterilization chamber (4). The sterilizer has a door (5), to ensure the tightness of the device between the door (5) and the body of the sterilizer (3) there is a thermal pad (9). For the convenience of opening and closing the door (5), it has a heat-resistant handle (18) and a locking mechanism (19) on the sterilizer body. For the stability of the sterilizer, four legs are located below, two front legs (6) are not adjustable, in contrast to the two rear legs (7), which allow you to level the sterilizer. The control panel (Fig. 6) is an area on which the sterilizer controls are located, as well as elements for notifying the user of the sterilizer about the current state of the device. On the control panel there are: “I / O” network button (8) and “Start / Stop” button (10), “Mode selection” button (11), “Delayed start” button (12), display (13) showing temperature in the sterilization chamber (4), display (14), showing the time: 1) until the end of the selected mode, 2) before the start of sterilization when the Delayed Start function is started, indicator (15) of air heating in the sterilization chamber (4), indicator (16) the operation of the sterilizer in the selected mode and the indicator (17) of the cooling of the sterilization chamber (4) after operation. In FIG. 3 shows the sterilization chamber (4) separated from the rear wall, on which the diagonal impeller (26) is located, by a grate (21). In the sterilization chamber (4) there are holder grooves (20) for mounting shelves (36) on them. On the shelves (36) before starting the sterilizer, instruments are placed in individual packages for sterilization. In FIG. 4. shows a cut made behind the grate (21). On the rear wall of the sterilization chamber (4), on a rotating shaft (28), there is a diagonal fan impeller (26), which sucks in air from the center and blows it out to the sides onto the surrounding rectangular tubular electric heater (23). On the side of the rectangular tubular electric heater (23) there is a thermostat sensor (24), which is triggered when the emergency shutdown temperature is exceeded, on the other side of the rectangular tubular electric heater (23) there is a temperature control sensor (22). The rear view of the sterilizer is shown in Fig. 5. A convection fan (29) is installed on the outside of the sterilization chamber, blown by an axial impeller (27) located on a rotating shaft (28). Also, on the back, on the outside of the sterilization chamber, there are: thermostat connection (32) (24), hole (33) for connecting a temperature control sensor (22), convection fan power connection (34) (29), tubular electric heater connection (35) (23), ground (30) and external power wire (31). In FIG. 7 shows a view of the back wall without the convection fan (29). Between the sterilization chamber (4) and the base (37) of the convection fan there is a thermal pad (38), which restrains the heating of the base (37) of the convection fan and, in fact, of the entire fan (29) from the rear outer wall of the sterilization chamber. Also shown: a hole (40) for connecting a thermostat (32) and holes (39) for connecting a rectangular tubular heater (23). The body (3) of the sterilizer is made of sheet metal coated with an epoxy-polyester protective coating, the door (5) and the sterilization chamber (4) are made of stainless steel sheet. The sterilization chamber (4) allows the installation of up to 5 shelves to accommodate the sterilized material. The sterilizer has rear legs 7 adjustable in height. This option is necessary in order to reduce the noise emitted during fan operation. The fan is attached to the back of the sterilizer. It has a movable rotating shaft on which 2 impellers are fixed. Diagonal impeller 26 (with diagonal blades) is located in the inner part of the sterilization chamber 4. Axial impeller 27 (with axial blades) is located on the outside of the rear panel of the sterilization chamber 4 and cools the design of the convection fan 29. Since the rotating shaft has a parallel location relative to the installation plane of the sterilizer, then if the installation surface is not adjusted relative to the ground level, shaft play occurs, which leads to an increase in noise effects from the impellers. Adjustable rear legs 7 allow you to adjust the position of the sterilizer relative to the ground level and eliminate noise effects.

The sterilizer has 5 operating modes

1) sterilization No. 1 - 180°C, 60 min;

2) sterilization No. 2 - 160°C, 150 min;

3) disinfection program - 120°С, 45 min;

4) drying program 85°С, 45 min;

5) additional mode 40-200°С, 1…999 min.

The proposed sterilizer works as follows. Shelves are installed in the holder grooves of the sterilization chamber. The instruments are placed on the shelves, pre-packed in individual bags, intended for air disposable sterilization of products. Include button 8 "NETWORK". The panel "13" will display the value of the current temperature in the sterilization chamber 4. Select the desired program of the sterilizer by successively pressing the button "11" on the control panel "1". On the displays "13" and "14" after each pressing, the values of the installed programs appear:

2 sterilization programs:

a) 180°C, 60 minutes,

b) 160°C, 150 minutes:

disinfection 120°C, 45 minutes;

drying 85°C 45 minutes;

additional mode is started by holding down the button "11" for 2 seconds. After that, flashing values appear in the scoreboard "13" and "14". Then, using the button "11", the consumer sets the required temperature value in the range from 40 to 200 ° C, and using the button "12", the consumer sets the required time value from 1 to 999 minutes. After pressing the "10" button, the additional mode is activated.

If necessary, after selecting the required operating mode, the user can delay the start of the sterilizer from 1 to 24 hours by pressing the "12" key.

The selected mode is started by pressing the "10" key and the temperature in the sterilization chamber 4 begins to heat up to the set value. With the start of work, the tubular heating element 23 is turned on and the fan is started, the diagonal impeller 26 of which mixes the air in the sterilization chamber 4, and the heating indicator “15” lights up on the control panel 1. In the heating mode, in all selected programs, the display "13" shows the actual increase in the temperature value in the sterilization chamber 4, up to the specified mode. Display "14" is flashing. When the temperature in the sterilization chamber 4 reaches the set value, in accordance with the selected mode of operation, for some time the temperature equalizes to the set value in the entire sterilization chamber. After equalizing the temperature in the sterilization chamber to the set value, the indicator "16" lights up. The temperature value of the selected mode lights up on the display "13", and the time value of the selected mode lights up on the display "14".

If at the stage of operation of the selected mode, in the sterilization chamber there is an increase or decrease in temperature by more than 3 ° C, the program function of stopping the sterilization cycle is triggered, a signal sounds. Also, when the emergency shutdown temperature exceeds 210°C, the thermostat sensor (24) is triggered, a signal sounds. The operation mode of the selected mode is interrupted. In this case, the operation of the sterilizer is stopped by pressing the button "10", waiting for the temperature in the sterilization chamber to cool (lower) to 75°C. After that, all instruments are removed from the packages for sterilization in individual disposable packaging. The instruments are re-placed in new packages for thermal sterilization in individual disposable packaging. The causes of the sterilizer malfunction are established and eliminated, which led to the malfunction of the sterilizer at the specified temperature values, then work is started anew. During the operation of the sterilizer in the selected mode, the display "13" constantly shows the temperature in the sterilization chamber, and the display "14" informs about the remaining minutes until the end of the selected mode.

After the sterilizer has worked out in time in the selected mode, the indicator “17” lights up, the display value “14” goes into flashing mode, the cooling indicator lights up, the display “13” informs about the decrease in temperature values in the sterilization chamber, at the same time the heating of the thermal element in the sterilization chamber is turned off , and the diagonal fan impeller continues to circulate air in the sterilization chamber, providing rapid cooling. Cooling of the tool after processing takes no more than 20-25 minutes. After the temperature in the sterilization chamber drops to 75°C, the cooling indicator goes out and a sound signal sounds about the end of the selected mode.

The claimed sterilizer is designed and designed for sterilizing instruments, in particular manicure ones, in individual packages, in particular kraft bags, since without them it is impossible to guarantee the sterility of the material when personnel come into contact with it during the removal of the sterilized material from the sterilization chamber. The sterilizer has the smallest overall dimensions among similar sterilizers, light weight and comfortable handle, making it easy to use, has the ability to sterilize instruments on several trays at the same time, which increases the productivity of the sterilizer. The proposed sterilizer provides high sterilization efficiency throughout the entire life of the sterilizer, as well as increasing the convenience of using the device.

Appendix to the application "Automatic air sterilizer for instruments in individual packaging"

SPECIFICATION

1. Control panel.

2. Control unit.

3. Sterilizer body.

4. Sterilization chamber.

5. The door of the sterilization chamber.

6. Front legs (non-adjustable in height).

7. Rear legs (adjustable in height).

8. Button network "I / O".

9. Thermal pad between the body of the sterilizer (3) and the door of the sterilization chamber (18).

10. Start/Stop button.

11. Mode selection button.

12. Button "Delayed start".

13. Display showing the temperature in the sterilization chamber (4).

14. Display showing the time: 1) until the end of the selected mode, 2) before the start of sterilization when the Delay Start function is started.

15. Indicator of air heating in the sterilization chamber (4).

16. Sterilizer operation indicator in the selected mode.

17. Indicator of cooling of the sterilization chamber (4) after work.

18. Heat resistant handle.

19. Locking mechanism.

20. Groove-holder of the shelf (38) in the sterilization chamber (4).

21. Grid separating the sterilization chamber (4) from the diagonal impeller (26).

22. Temperature control sensor.

23. Tubular electric heater.

24. Thermostat, triggered at the time of emergency overtemperature.

25. Fan guard.

26. Diagonal impeller, inside the sterilization chamber (4).

27. Axial impeller cooling the convection fan (29).

28. Rotating shaft on which the impellers (26,27) are mounted.

29. Convection fan.

30. Grounding.

31. External power connection wire.

32. Thermostat connection (24).

33. Hole for connecting a temperature control sensor (22.

34. Convection fan power connection (29).

35. Connecting a tubular electric heater (23);

36. Shelf.

37. Convection fan base (29).

38. Thermal pad between sterilization chamber (4) and convection fan base (29).

39. Hole for connecting the heating element (35).

40. Hole for thermostat connection (32).

Claims (8)

1. Automatic air sterilizer for instruments in individual packaging, containing a body with a sterilization chamber, equipped with a door, a control unit, a heater, a fan, a temperature sensor, characterized in that the control unit is located on the upper surface of the sterilizer body, the sterilizer body is provided with legs, while the rear legs are adjustable in height, the heater is made in the form of a rectangular tubular circuit located along the rear wall of the sterilization chamber, in the center of the rear wall of the sterilization chamber, a diagonal fan impeller and an axial impeller are mounted on a rotating shaft, while the diagonal impeller is located inside the sterilization chamber and is separated from it with a grate, and the axial impeller is located on the outside of the sterilization chamber. 2. Automatic air sterilizer according to claim 1, characterized in that a thermal pad is located between the door and the body of the sterilizer, while the door is equipped with a heat-resistant handle, and a locking mechanism is installed on the body of the sterilizer. 3. Automatic air sterilizer according to claim 1, characterized in that thermal pads are installed between the rear wall of the sterilization chamber and the base of the convection fan. 4. Automatic air sterilizer according to claim 1, characterized in that the control unit is made in the form of a trapezoidal prism, and the control panel is located on the inclined surface of the control unit. 5. Automatic air sterilizer according to claim 1, characterized in that the ratio of the width of the shelves to the width of the sterilizer body is more than 0.75. 6. Automatic air sterilizer according to claim 1, characterized in that it is equipped with an alarm system and shutdown when the temperature in the sterilization chamber is exceeded, made in the form of a thermostatic sensor. 7. Automatic air sterilizer according to claim 1, characterized in that it is equipped with a delayed start function. 8. Automatic air sterilizer according to claim 1, characterized in that it is equipped with a system of sound and light signaling of operating modes.

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