JPS5937955A - Automatic cleaning and pasturizing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an automatic cleaning and sterilization device equipped with a can drain/exhaust switch.

<Prior art> A device that automatically cleans and sterilizes instruments contaminated with dirt and bacteria (also called a washer sterilizer) is a device that automatically cleans and sterilizes instruments contaminated with dirt and bacteria (also called a washer sterilizer). This device is designed to prevent nosocomial infections by preventing infection.

General C B automatic cleaning □ Cleaning and sterilization equipment can perform presoaking, rinsing (1 to 5 times), sterilization preparation, and sterilization processing simply by placing the object to be cleaned (sterilized) into the can and then operating the operation switch. Cleaning and sterilization work is carried out by sending processes in series, but with conventional equipment, if there is a power outage during process operation, the system stops operating due to the power being accidentally turned off, etc. It stops midway through the process. If the work is to be continued by energizing, the process will continue from the stopped process, so there is a concern that it will take time to pass the remaining processes and that cleaning and sterilization may be impaired. Furthermore, since it cannot be reset during the process, there are various drawbacks in that it takes time to make corrections.

<Purpose> The present invention achieves the following by providing a can drainage/exhaust switch.
The object of the present invention is to provide an automatic cleaning and sterilization device that returns the device to its initial state at the same time as draining and evacuating the inside of the can.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram of the automatic cleaning and sterilization apparatus of the present invention.

In Fig. 1, l is a door for taking objects to be cleaned into and out of the can body 3, 2 is a door seal that prevents cleaning water and steam from leaking from the door 1 when the door l is closed, and 3 is a cleaning water and a can body for holding steam and performing presoaking, rinsing and sterilization operations, 4
1 is a detergent injection case that stores detergent and injects the detergent into the can body 3 by closing the door 1. The detergent dissolves in water in the pre-soaking process and dissolves and removes dirt from the object to be cleaned.

5 is a drainboard frame on which a basket for storing items to be cleaned is placed;
6 is a drain filter that removes dust etc. when washing water is drained;
7 is the upper limit detection electrode of the float-less switch F'S that detects the upper limit water level in the can body 3; 8 is a shower nozzle for shower rinsing that supplies shower water into the can during rinsing; 9 is a water level inside the can body 8 during pre-soak cleaning. Water supply port for pre-soak cleaning, I
As shown in Fig. 2, O is a guide plate disposed in front of the water supply port 9 for pre-soak cleaning so that the supplied water flows along the inner wall of the can body 3. Gently remove the can body 3
It guides the detergent inside and prevents the detergent from foaming. 11 is a water supply pump, 12 is a water supply solenoid valve for presoak cleaning, 1
3 is a water supply solenoid valve for shower rinsing, 14 is a lower limit detection electrode of a floatless switch FS that detects the lower limit water level in the can body 8, 15 is a drain solenoid valve, 16 is a steam supply solenoid valve, and 17 is a steam supply port. .

FIG. 3 is an electrical circuit diagram of a main part incorporated in the device of the present invention, and its configuration will be explained in detail along with an explanation of its operation.

In each step (pre-soaking, rinsing, sterilization, and steps organized in a series as necessary), the device is reset and forcibly returned to its initial state.
If the user wishes to drain and evacuate the inside of the can, he or she operates an externally operable internal drainage and evaporation switch 18 provided on an operation panel (not shown). As a result, relay (2) is energized through switch 18, relay contact (X) is closed, and a self-holding circuit of relay (2) is formed through timer switch TM Me contact (a) and relay contact (X).

The can drain/evacuate switch 18 uses a switch that returns automatically when the pressure is released. Simultaneously with the self-holding of the relay (2), the solenoid valve 15 for draining and steaming the can is energized through the a contact of the timer switch TM and the relay contact X, and the valve opens. This in-can drainage/exhaust solenoid valve 15 is normally controlled to open and close by a switch means (not shown) depending on the progress of each process. At the same time, the timer (→ is also energized and starts counting time).

Furthermore, the stepping relay solenoid 21 is activated through each contact 2.8.4 of the stepping relay 19 and relay contacts X, The stepping relay 19 is energized one after another.
No matter what step it is in, it is forcibly returned to contact 1, which is the home position, and stopped.

When the timer (→) activated based on the operation of the water drain/evacuation switch 18 in the MA b can measures the set predetermined time, the timer switch TM switches to the B contact.
The self-holding circuit of relay (2) is released, the can drainage/vaporizing solenoid valve 15 is closed, and the device completely returns to its initial state.

Here, the set time of the timer (→) is such that no matter which process the device is in, the water or steam present in the can is completely drained when the can drain/evacuate switch 18 is operated. Take the time you need.

In this way, normally, the stepping relay 19 performs each step of pre-soaking → rinsing → sterilization preparation and sterilization.
When the anti-seismic can internal drainage/evacuation switch 18 is operated to return to contact 1, which is the home position, and stop the operation, the stepping relay 19 is returned to the home position at once, and the inside of the can is also returned to the initial state. Therefore, even if there is a power outage or the power switch is accidentally turned off, the work can be immediately restarted from the beginning by simply operating the can drainage/evacuation switch 18 after power is turned on again.

FIG. 4 shows a flowchart of the above-mentioned operation process,
By turning the power switch to 0 NJ (■), the preparation process (2) is started, and when the preparation process is completed, the machine is ready for operation.

Next, when the operation switch is turned to rONJ (■), the operation is sequentially performed in the following sequence: presoaking process (■), rinsing process (1 to 5 times) (2), sterilization preparation process (2), and completion of the sterilization process (2).

Also, if you have a power outage or accidentally turned off the power during the pre-soaking process and want to reset the rest of the process when the power is turned on again,
Example A, rinsing process■, sterilization preparation process■,
Reset the sterilization process ■ and end ■ and return to the preparation process ■.

Also, if the switch for evacuating and draining the can is pressed during other steps, the remaining steps are reset and the process returns to the preparation step (2) as in Examples B, C, and D at the same time as the evacuating and draining the can. Moreover, even if this switch is operated during process operation, the same operation will occur.

<Effects> According to the present invention as described above, an in-can drainage/M switch is provided, and the operation of the switch forcibly performs drainage/evaporation and returns the device to its initial state by resetting the process. Therefore, an automatic cleaning/sterilizing device is provided that can quickly resume work even if the device stops midway due to a power outage or accidentally turning off the power.

[Brief explanation of the drawing]

Figure 1 is a schematic configuration diagram of an automatic cleaning/sterilization device that is an embodiment of the present invention, Figure 2 is an enlarged view of the water supply port for presoak cleaning, and Figure 3 is the main electrical circuit assembled in the above device. FIG. 4 is a flowchart of the operating steps.

Claims (1)

[Claims] 1. An apparatus for performing cleaning and sterilization processes in series, which is equipped with a can drainage/evacuation switch that arbitrarily operates a valve for controlling drainage and evaporation inside the can. Automatic cleaning and sterilization equipment featuring: 2. It is a device that performs cleaning and sterilization processes in series, and the valves that control the drainage and evaporation inside the can can be operated at will, and the drainage and sterilization inside the can can be operated to return the device to its initial state.
Automatic cleaning and sterilization equipment characterized by being equipped with an exhaust switch.