JPS6311905B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to an automatic cleaning/sterilization device that incorporates a pre-soak cleaning process into a series of processing steps to facilitate the removal of dirt.

<Conventional technology> Automatically cleans and cleans instruments contaminated with dirt and bacteria.
The sterilization device (also called a wash sterilizer) is used to sterilize bacteria and viruses by not bringing them out of the hospital's surgical department, its surroundings, or the ward.
This device is intended to prevent nosocomial infections.

Conventional automatic cleaning and sterilization equipment sterilizes objects to be cleaned using a shower, but this process sometimes leaves stains on the objects to be cleaned. Therefore, when complete cleaning was required, pre-cleaning was performed using an ultrasonic cleaning device, and then rinsing and sterilization was performed using an automatic cleaning/sterilizing device, but the process became complicated and a separate ultrasonic cleaning device was prepared. I needed to.

<Purpose> In view of the above points, the present invention provides an automatic cleaning/sterilization device that includes a step of immersing the object to be cleaned in a cleaning solution for a predetermined period of time in the same can before the rinsing step, thereby dissolving dirt in advance and making it easier to remove it. It was created with the purpose of providing.

<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, 1 is a door for taking objects to be cleaned into and out of the can body 3, 2 is a door gasket that prevents cleaning water and steam from leaking from the door 1 when the door 1 is closed, and 3 is a cleaning water and a can body that holds steam; 4 is a detergent injection case that stores detergent and injects detergent into the can body 3 by closing the door 1; 5 is a drainboard frame on which a basket is placed; 6 is a trash can when washing water is drained. 7 is the upper limit detection electrode of the floatless switch FS that detects the upper limit water level inside the can body 3, 8 is the shower nozzle for shower rinsing, and 9 is the water supply inside the can body 3 during pre-soak cleaning. The presoak cleaning water supply port 10 is arranged in front of the presoak cleaning water supply port 9 as shown in Fig. 2, so that the supplied water flows along the inner wall of the can body 3. It is a guide plate and acts to gently guide water into the can body 3 and prevent the detergent from foaming. 11 is a water supply pump, 12 is a water supply solenoid valve for presoak cleaning, 13
14 is the lower limit detection electrode of the floatless switch FS, 15 is the drain solenoid valve, 16 is the steam supply solenoid valve, and 17 is the steam supply solenoid valve.

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.

First, by operating the start switch provided on the operation panel (not shown) of the device, contact 1 (home position) of the stepping relay 18, which is a stepping means for operating each process in series, is activated. The stepping relay solenoid 20 is energized through the cam switch 19 of the stepping relay 18, and the stepping relay 1
8 moves to contact point 2 (presoak cleaning process) and stops. When the stepping relay 18 moves to the contact 2, the relay 〓〓 is energized through the contact 2' of the stepping relay 18, the relay contact X1 is closed, and the relay contact X1 becomes the floatless switch.
The presoak cleaning water supply solenoid valve 12 is energized through the lower limit contact C1 of the FS and the a contact of the switch 21 driven by the relay 〓〓, and the solenoid valve 12 is opened, and at the same time, the water supply pump 11 is activated to drain the can body. 3
Water supply will start within the same period.

When the inside of the can body 3 becomes full of water, the upper limit detection electrode 7 detects that the floatless switch FS switches to the upper limit contact C2.
As a result, the electromagnetic valve 12 closes and the operation of the water supply pump 11 also stops, thereby stopping the water supply. During this time, the water supply dissolves the detergent from the detergent injection case 4, and the object to be cleaned is immersed in this detergent solution.
Dirt on the object to be cleaned is dissolved.

This presoak cleaning step is executed for the time measured by the presoak timer, which is excited through the relay contact X1 and the upper limit contact C2 of the floatless switch FS. For example, the time measured by this presoak timer is set to about 20 to 30 minutes.

Further, the relay 〓〓 is excited in synchronization with the excitation of the presoak timer 〓, closes the relay contact X2 and maintains itself, and switches the switch 21 to the b contact. When the set time of this presoak timer 〓〓 has elapsed, the contact TM closes, so this contact
The drain electromagnetic valve 15 is energized through the TM, the drain electromagnetic valve 15 is opened, and the drain operation inside the can body 3 is started. When the end of the drainage operation in the can body 3 is detected by the lower limit detection electrode 14, the lower limit contact C1 of the floatless switch FS closes again, and the relay is energized, relay contact X3 is closed, stepping relay solenoid 20 is energized, and stepping relay 18 advances to contact 3 (rinsing step).

When the rinsing process is completed, the stepping relay 18 further advances to the contact point 4 (sterilization preparation/sterilization process).

Note that the steps after these rinsing steps are not the gist of the present invention, and therefore, explanations related to these steps will be omitted below.

As described above, a pre-soaking cleaning process in which the object to be cleaned is immersed in a detergent solution is performed in the same can body prior to the rinsing cleaning process.

<Effects> According to the present invention as described above, a pre-soak cleaning process is performed in which the object to be cleaned is immersed in a detergent solution in the same can, prior to the conventional rinsing process. Therefore, an automatic cleaning and sterilization device that can efficiently remove dirt and the like can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an automatic cleaning/sterilization device that is an embodiment of the present invention, Fig. 2 is an enlarged view of the water supply port for pre-soak cleaning, and Fig. 3 is a diagram of an automatic cleaning/sterilization device that is an embodiment of the present invention. FIG. 2 is a main part electric circuit diagram. 3... Can body, 4... Detergent injection case, 8... Shower nozzle, 9... Water supply port for pre-soak cleaning, 11... Water supply pump, 12... Water supply valve for pre-soak cleaning, 18... Stepping relay, 19... Stepping relay cam switch, 20... solenoid for stepping relay,
〓〓…Presoak timer, FS…Switch without float.

Claims (1)

[Scope of Claims] 1. A drain port, a water supply port for rinsing, and a steam supply port for sterilization each of which are controlled to open and close by a control valve are provided in a can housing the objects to be cleaned. In an automatic cleaning and sterilization device that performs rinsing and sterilization of washed items, a water supply port for pre-soaking cleaning is provided in the can body and the opening and closing of the water inlet port is controlled by a control valve, and the door of the can body is A detergent injection device injects detergent into the can body after the is closed, and upon operation of the start key, a pre-soak cleaning process is performed by first supplying a predetermined amount of water into the can body by controlling the pre-soak cleaning control valve. An automatic cleaning and sterilization device characterized by comprising means for performing control such that the pre-soaking cleaning process is completed after a predetermined period of time has elapsed, and the rinsing process and the sterilization process are subsequently performed.