JPS6311070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an instrument washer for cleaning medical and laboratory instruments.

(b) Conventional technology For example, in Utility Model Publication No. 58-20221, there are two
This shows an arrangement in which several rotary jet nozzles are arranged, and the shaft parts of these nozzles are connected by a connecting pipe so that cleaning water is spouted from the upper and lower rotary jet nozzles. However, in this conventional example, objects with narrow openings such as narrow-mouth bottles and test tubes cannot be cleaned.
There is a drawback that the cleaning water does not enter the object to be cleaned sufficiently, so that the inside of the object to be cleaned cannot be cleaned. Therefore, it is conceivable to use a fixed nozzle equipped with a narrow rod-shaped nozzle pipe that enters from the mouth of the object to be cleaned, such as a narrow-mouthed bottle, instead of the rotary jet nozzle, but depending on the object to be cleaned, As shown in Fig. 2, there are disadvantages in that the object to be cleaned may be biased and come into contact with the nozzle pipe, or the object to be cleaned may be tilted, resulting in a poor cleaning effect.

(C) Problems to be Solved by the Invention The utensil washer of the present invention prevents the object to be washed from coming into contact with the small-diameter rod-shaped nozzle pipe even if the object has a narrow mouth. This is so that a sufficient cleaning effect can be obtained.

(d) Means for Solving the Problems The utensil washer of the present invention has a washing chamber whose front opening is closed by a door body that can be opened and closed, and a small diameter rod-shaped nozzle pipe installed upwardly. It has an instrument rack housed in a room, a water supply mechanism that supplies cleaning water to a water supply section of the rack, and an instrument receiver that has a downwardly sloped mounting surface and is movably attached to the nozzle pipe, The object to be cleaned inserted into the nozzle pipe through the mouth is placed on the inclined mounting surface of the instrument holder and held in the instrument rack.

(E) Function: The object to be cleaned is guided to the inclined mounting surface of the instrument holder, and the small diameter rod-shaped nozzle tube is automatically positioned at the center of the mouth of the object and held in the instrument holder. The cleaning water spouted from the nozzle pipe cleans the inside of the object to be cleaned evenly and over a wide range.

(F) Embodiment 1 is a main body of an instrument washer for cleaning medical and experimental instruments such as flasks and test tubes, and the front is closed with a door body 2 that can be opened and closed, and a cleaning tank 3 is provided at the bottom. It consists of a washing chamber 4 and a machine room 7 which is arranged from the rear of the washing chamber 4 downward and covered with a rear plate 5 and a bottom plate 6. In the machine room 7, 8 is a washing pump, 9 is a drain pump, and 10 is a washing pump.
11 is an overflow pump, and 11 is a control circuit unit for controlling these.The suction ports of the washing pump 8 and the drain pump 9 are connected to a filter housing recess 12 connected to the lower part of the washing tank 3. Pump 9 and overflow pump 10
The discharge ports are drain pipes 13a, 13b and check valve 14.
The suction port of the overflow pump 10 communicates with an overflow port 15 in the cleaning chamber 4. A water level switch 16 detects the specified water level of the washing water. 17,1
Reference numeral 8 denotes a water supply pipe and a hot water supply pipe for supplying water and hot water into the cleaning chamber 4, and includes a water supply control valve 19 and a hot water supply control valve 20. Furthermore, 21a and 21b are solvent storage boxes which are bypassed from the water supply control valve 19 and the hot water supply control valve 20 and communicated with the cleaning chamber 4, and store detergents, finishing agents, disinfectants, neutralizing agents, and the like. Further, a control section 22 for inputting information to the control circuit unit 11 is provided on the upper part of the door body 2, and a power switch 23, a keyboard 24, and a display board 25 are arranged on the control section 22, respectively. The door body 2 has a glass window 26 in the center for internal confirmation.

In the cleaning chamber 4, 27 is a filter basket housed in the filter storage recess 12, 28 is a sheathed heater for boiling water, 29 is a lower nozzle bearing communicating with the discharge port of the cleaning pump 8, and 30 is the cleaning device. These nozzle bearings 2 are connected to the discharge port of the pump 8 through a connecting pipe 31.
9 and 30 each have a lower rotating jet nozzle 32,
The upper rotating jet nozzle 33 is rotatably supported by a loose shaft. And these jet nozzles 32, 33
The nozzle is rotated by cleaning water jetted from a rotating jet hole 34 formed on the side surface, and also rotated by cleaning water jetted from an upper surface jet hole 35 or a lower surface jet hole 36 formed on the upper or lower surface of the nozzle. to wash the object to be cleaned.

Reference numeral 37 denotes an instrument rack for mounting and holding the objects A to be cleaned, such as medical and experimental instruments such as flasks and test tubes, and a small-diameter rack that is loosely inserted into the objects A from the openings of these objects A. Rod-shaped nozzle pipes 38 are installed upward from a hollow base 39 made of a pipe member, and a wash water socket 40 is provided at the bottom of the central portion of the hollow base 39. The instrument rack 37 is stored in the washing chamber 4 along the rail 41 of the washing chamber 4 so as to be able to move in and out of the washing chamber 4. At this time, the washing water socket 40 is connected to the lower nozzle bearing 2.
It is located above 9. Further, reference numeral 42 denotes a nozzle head made of stainless steel that is inserted and fixed into the upper end opening of the small diameter rod-shaped nozzle pipe 38, and has a cross-shaped slit hole 44 bored in the upper end that communicates with an internal water passage hole 43. Reference numeral 45 denotes a synthetic resin instrument holder for placing the object A to be cleaned so that the nozzle head 42 is located at the upper central part of the inside of the object A, and is attached to the nozzle pipe 38 so as to be movable in the vertical direction. The attached mounting tube 46 and this mounting tube 46
It consists of instrument mounting pieces 47 extending radially every 120 degrees with respect to the axial direction of the mounting cylinder 46 and hooking claw pieces 48 extending below the mounting cylinder 46, In addition, the instrument mounting piece 47 has an inclined mounting surface 49 having a steep downward slope from the mounting cylinder 46 to one end 47a. A plurality of circumferential grooves 50 are bored in the outer circumferential wall of the small-diameter rod-shaped nozzle pipe 38, and these circumferential grooves 5
By hooking the hooking claw piece 48 to one of the 0..., the instrument receiver 45 is attached to the nozzle pipe 38 while adjusting the mounting height.

Reference numeral 51 denotes a water cylinder which is installed in and out of the lower nozzle bearing 29 and serves as a water supply mechanism for supplying cleaning water to the instrument rack 37. It normally enters the lower nozzle bearing 29 and is used by the cleaning pump 8 during cleaning operation. The pressure of the washing water increases and is connected to the washing water inlet 40 of the instrument rack 37.

Then, the object to be cleaned A is placed in the instrument rack 37 by turning it in the opposite direction and fitting it into the small diameter rod-shaped nozzle tube 38 from above until its mouth part contacts the inclined mounting surface 49 of the instrument receiver 45. At this time, since the inclined mounting surface 49 has a downward slope, the nozzle pipe 38 is automatically positioned and held in the center of the mouth of the object A, as shown in FIG. Thus, the object A to be cleaned will not come into contact with the nozzle pipe 38 or be tilted. At this time, the object to be cleaned, such as a graduated cylinder,
The object to be cleaned A' may be held so as not to tilt by positioning and inserting a small diameter instrument holder 45' inside A'. Thereafter, the instrument rack 37 is stored in the cleaning chamber 4, the door body 2 is closed, and the keyboard 2
Operate 4 to start the cleaning operation. Then, a predetermined amount of cleaning water is supplied to the cleaning layer 3, and after this cleaning water rises to a predetermined temperature, the cleaning pump 8 is activated, and the upper and lower rotary jet nozzles 33, 32 rotate while spouting the cleaning water. The outer surface of the object to be cleaned A is cleaned, and the water cylinder 50 is further raised and connected to the instrument rack 37 to connect the nozzle head 42 of the small diameter rod-shaped nozzle pipe 38.
The water is ejected evenly around the periphery from the cross-shaped slit hole 44 to thoroughly and thoroughly clean the inner surface of the object A.

(G) Effects of the Invention According to the present invention, even if the object to be cleaned has a narrow mouth such as a flask or a test tube, when holding it in an instrument rack, the mouth can be simply inserted into the small diameter rod-shaped nozzle tube from above. The object to be cleaned is placed and held in a state that it is not biased against the nozzle pipe by the instrument holder, and the cleaning water jetted from the nozzle tube evenly hits the entire inner circumference of the object to be cleaned, resulting in a sufficient cleaning effect. can be obtained.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the utensil washer of the present invention, in which Fig. 1 is a cross-sectional side view in a cleaning state, Fig. 2 is a front view, Fig. 3 is a sectional view of main parts, A is a longitudinal sectional view, and B is a longitudinal sectional view. Cross sectional view, Figure 4 is a view of the nozzle head, A is a top view, B is a side view of A-A' cross section of A, Figure 5 is a view of the instrument holder, A is a top view, B is a partially sectional side view. 6 are enlarged views of the main parts of a small diameter rod-shaped nozzle pipe, and FIGS. 7A and 7B are views of the main parts of a conventional example, respectively. 2... Door body, 4... Washing chamber, 38... Small diameter rod-shaped nozzle pipe, 37... Instrument rack, 49... Inclined mounting surface, 4
5,45'...Instrument holder.

Claims (1)

[Claims] 1. A cleaning chamber whose front opening is closed with a door body that can be opened and closed, an instrument rack with a small diameter rod-shaped nozzle pipe installed upwardly and housed in the cleaning chamber, and a water supply section of this rack with cleaning water. and an instrument holder having a downwardly inclined mounting surface and movably attached to the nozzle pipe, and an object to be cleaned inserted into the nozzle pipe from the mouth is placed in the instrument holder. An utensil washer that is mounted on an inclined mounting surface and held in the utensil rack.