JPH0448795Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is mainly used for cleaning liquid injection devices in automatic washing machines that spray cleaning liquid on tableware, eating and drinking spoons, etc. The present invention relates to a cleaning liquid spraying device suitable for an automatic washing machine, which cleans a plurality of dishes placed vertically in a washing rack using a rotating nozzle that horizontally rotates using the jetting force of the cleaning cleaning liquid.

``Problems to be solved by conventional technology and ideas'' Conventionally, a nozzle pipe with multiple inclined nozzles installed along the longitudinal direction was created by spraying cleaning liquid from each inclined nozzle to a vertical liquid supply support pipe. A cleaning liquid injection device is known that cleans a large number of tableware placed diagonally in a stationary rectangular box-shaped cleaning rack or in a cleaning rack transported on a conveyor while horizontally rotating the device.

In this rotating injection nozzle device, a single nozzle pipe is attached to a plurality of nozzles that are inclined to inject the cleaning liquid obliquely upward or downward, and the nozzle pipe is rotated by the reaction force of the injection, and the nozzle is However, when washing a bowl held vertically in a washing rack as shown in Figure 9, the washing liquid is sprayed onto the lower half of the inside of the bowl. There was a drawback that cleaning was incomplete because blind spots were created that could not be touched.

In addition, in the center of rotation of conventional nozzle pipes, the nozzle cannot be installed because the liquid supply support tube is located at the center of rotation, resulting in areas that are not hit by spray, resulting in incomplete cleaning. There were flaws.

On the other hand, in a dishwasher in which multiple items to be washed, such as tableware, are placed in a square box-shaped washing rack, the above-mentioned rotating nozzle device creates blind spots at the four corners where the washing liquid is not sprayed. Therefore, conventionally, a rectangular guide rail is provided around the rotating part of the nozzle pipe, and a guide roller provided at the tip of a rectangular follower nozzle pipe whose rear end is pivotally connected to the nozzle pipe is pressed into contact with this guide rail by a spring. , a cleaning liquid injection device that sprays cleaning liquid from a nozzle at the tip of a rectangular following nozzle pipe that follows a rectangular shape along a guide rail as the nozzle pipe turns, so that the cleaning liquid also hits the four corners of the cleaning rack. is also known.

However, the four corners of the cleaning rack that are not hit by the cleaning liquid of the rotating nozzle tube are also quite wide-ranging, so using only the nozzles at the tip of this rectangular follow-up nozzle tube cannot effectively remove the cleaning items in the four corners of the rack. There was a problem that cleaning power was insufficient for cleaning.

"Means for Solving the Problems" In order to solve the problems of the conventional rotating nozzle device that automatically rotates using injection force, this invention has the following features:
A long first main nozzle pipe having a plurality of inclined nozzles above and below a vertical main liquid supply support pipe through which cleaning liquid is pumped from a cleaning liquid pump, and a short first main nozzle pipe having a nozzle directed toward the tip of the main liquid supply support pipe. A first sub nozzle pipe, a second main nozzle pipe having a plurality of inclined nozzles tilted in the opposite direction to the inclined nozzles of the first main nozzle pipe at different positions, and a main liquid supply support pipe in the distal direction. A short second auxiliary nozzle pipe with a nozzle directed toward the main nozzle is rotatably provided, and the cleaning liquid is fed under pressure from the main liquid supply support pipe to the upper and lower main nozzle pipes and the auxiliary nozzle pipe, and the jetting force automatically A rectangular follow-up nozzle pipe having a nozzle and a guide roller attached to its tip is pivotally attached to either or both of the first main nozzle pipe or the second main nozzle pipe, and the first main nozzle pipe is configured to rotate. A bent nozzle pipe that is bent at a required angle in the horizontal direction is provided in communication with the tip of either or both of the pipe or the second main nozzle pipe, and the bent nozzle pipe is provided at the height of the guide roller at the tip of the rectangular follow-up nozzle pipe. A cleaning liquid injection device with a guide rail installed inside the washer so as to surround the circumferential part in a rectangular shape, and a vertical sub-liquid support to which the cleaning liquid is pumped from the finishing water pump to the tip of the main liquid supply support pipe in this cleaning injection device. A long finishing nozzle pipe is rotatably installed on this sub-liquid support pipe, and finishing water is force-fed from the sub-liquid support pipe to the sub-liquid support pipe, and the spraying force automatically The present invention proposes a cleaning liquid injection device configured to rotate around the vehicle.

"Operation" While the long first and second main nozzle pipes arranged above and below the main liquid supply support pipe rotate in opposite directions,
Since the cleaning liquid is sprayed from the nozzles tilted in opposite directions, the cleaning liquid is surely sprayed over the entire surface of the bowls etc. held vertically in the washing rack, which prevents incomplete cleaning from occurring. Cleaned thoroughly without any problems.

In addition, on the extension of the center of rotation of the main nozzle pipe,
Since the cleaning liquid is repeatedly sprayed from the nozzles of the first and second sub-nozzle pipes, the object to be cleaned located above the center of rotation is also reliably cleaned.

Furthermore, while the guide roller at the tip of the rectangular follow-up nozzle tube runs on the guide rail, the cleaning liquid is injected from the nozzle at the tip, and the rotating portion of the first main nozzle tube and the second main nozzle tube is sprayed from the nozzle of the bent nozzle tube. Since the cleaning liquid is sprayed around the outer periphery, objects to be cleaned located at the four corners and the periphery of the cleaning rack are also reliably cleaned.

Therefore, the cleaning liquid is repeatedly sprayed almost uniformly onto the cleaning items in the cleaning rack, making it possible to reliably clean the items without leaving any areas lacking in cleaning power.

In addition, in a box-type automatic dishwasher that washes the washing rack in a stationary state, after washing with the above-mentioned washing liquid, finishing water is force-fed from the sub-liquid support pipe to the finishing nozzle pipe, and the washing rack is tilted diagonally. Finish cleaning is performed while automatically swirling the finishing water from the nozzle using spray reaction force.

``Example'' Below, an example of this invention shown in the drawings will be explained. Fig. 2 shows an example of a conveyor conveyance type automatic tableware washing machine using the cleaning liquid injection device of this invention. chain conveyor 2
is installed horizontally in the front-rear direction, and above it is provided a cleaning chamber 4 covered with a tunnel-shaped hood 3.
At the bottom, there is a cleaning liquid tank 6 that collects the cleaned cleaning liquid with a drain receiver 5, overflows the dirty cleaning liquid as appropriate, and stores the new liquid while replenishing it.
is installed.

The required number of objects W to be cleaned are placed in a rectangular box-shaped cleaning rack R with a grid-like bottom so that the cleaning liquid can be sprayed through, and the items are placed on the conveyor 2 together with the cleaning rack R and transported into the cleaning chamber 4. Cleaning liquid injection devices 7, 7' installed above and below the upper running section of the conveyor 2
After being cleaned by a jet of cleaning liquid from the machine body 1, it is cleaned by a jet of finishing water from upper and lower finishing cleaning nozzles 8 installed at the rear, and then carried out from the rear end of the body 1.

FIG. 1 shows an example of a box-type automatic dishwasher using the cleaning liquid injection device of this invention, in which a washing chamber 4 covered with a box-shaped hood 3 is provided in the upper part of the machine body 1. At the bottom, there are installed a cleaning liquid tank and a finishing water tank, which collect the cleaned cleaning liquid through a drainage receiver 5, overflow the dirty cleaning liquid as appropriate, and store the new liquid while replenishing it.

The required number of objects W to be cleaned are placed in a rectangular box-shaped cleaning rack R, and this cleaning rack R is placed on a pedestal 9 provided in the cleaning chamber 4, and a cleaning solution placed above and below the pedestal 9 is placed. After being cleaned for a required time (for example, around 40 seconds) by spraying the cleaning liquid from the spraying devices 10, 10', the finishing water is sprayed from the finishing water nozzle pipes of the same devices 10, 10' for the required time (for example, about 40 seconds). , approximately 20 seconds).

Figures 3 to 7 show a lower cleaning liquid injection device 10 applied to the box-type rack-type automatic cleaning machine.
The cleaning liquid from the cleaning liquid tank 6 is force-fed through the main liquid supply pipe 13 by the cleaning liquid pump 12 to the vertically upward main liquid supply support pipe 11 with the tip closed. A pair of outflow holes 1 each symmetrical about the axis are located at the top and bottom of the peripheral wall.
4 and 15 are provided.

Upper and lower outflow holes 14 in the main liquid supply support pipe 11,
An annular first nozzle header 16 and a second nozzle header 17 are rotatably fitted onto the outer periphery where the annular nozzle header 15 is located, and the rotary sliding contact portion with the main liquid supply support pipe 11 is sealed with water. Annular spaces 18 and 19 are formed inside.

Around the first nozzle header 16, there is a first main nozzle pipe 20 which is long and symmetrical about its axis, and a short main nozzle pipe 20 which is also symmetrical about its axis at a position shifted from this by a required angle (for example, 90 degrees). The first sub-nozzle pipes 21 are provided to protrude sideways, and communicate the openings at the base ends of the first main nozzle pipes 21 with the annular space 18. A bent nozzle pipe 20' is provided in series.

Around the second nozzle header 17, there is a second main nozzle pipe 22 which is long and symmetrical about its axis, and a second main nozzle pipe 22 which is also short and symmetrical about its axis at a position shifted by a required angle (for example, 90 degrees) from this. Two sub-nozzle pipes 23 are provided to protrude laterally, and each has an opening at its base end communicating with the annular space 19.

The first main nozzle pipe 20 and the second main nozzle pipe 22 have a plurality of nozzles 2 arranged at different positions from the axis of the main liquid supply support pipe 11 along the longitudinal direction thereof.
4 and 25, and a plurality of nozzles 26 and 26' are provided in the bent nozzle tube 20'.

The nozzles 24 and 25 are oriented in the orientation direction (upward direction) of the main liquid supply support pipe 11, and are installed with slight inclinations in opposite directions in a circumferential direction centered on the axis of the main liquid supply support pipe 11. The first main nozzle pipe 2 is
0 and the second main nozzle pipe 22 and the first sub nozzle pipe 2
1 and the second sub-nozzle pipe 23 to the first nozzle header 1
6 and the second nozzle header 17 horizontally pivot around the main liquid supply support pipe 11 in mutually opposite directions.

The first sub-nozzle pipe 21 and the second sub-nozzle pipe 23 are provided with one or more nozzles 27 and 28 oriented toward the front end of the axis of the main liquid supply support pipe 11 .

One of the nozzles 26 and 26' is oriented in the direction (upward direction) of the main liquid supply support pipe 11, and the other is oriented in the direction (upward direction) of the main liquid supply support pipe 11 toward the first main nozzle pipe 20. It is installed on the outside of the rotating part at a slight angle.

A rectangular follow-up nozzle pipe 29 is pivotally connected to the middle part of the second main nozzle pipe 22 with its rear end communicating with the inside of the second main nozzle pipe 22 so as to be able to rotate horizontally.
A guide roller 3 rotatable around a vertical axis is provided at the tip of the second main nozzle pipe 22 that protrudes forward.
0 and the main liquid supply support tube 11 (upward direction).

The rectangular follow-up nozzle pipe 29 has, for example, a rear end bent vertically, and is rotatably pivoted to a hollow bearing 32 that protrudes from the side surface of the middle part of the second main nozzle pipe 22 and communicates with the inside thereof. An inflow hole 33 is provided in a portion inserted into the inside of this bearing 32, and the cleaning liquid forced into the second main nozzle pipe 22 is introduced into the nozzle 31 through the bearing 32 and the inflow hole 33. It's starting to spray.

In addition, the rectangular follow-up nozzle pipe 29 has a scissor-shaped spring installed between its rear end and the outer periphery of the bearing 32, or the second main nozzle pipe 22 and the rectangular follow-up nozzle pipe 2
A return spring 34 such as a tension spring is attached between the rectangular follow-up nozzle tube 29 and the second main nozzle tube 22, and is provided with elasticity that constantly pulls the second main nozzle tube 22 in the turning direction. When the nozzle is pulled closest to the main nozzle pipe 22, it is stopped by a stopper 35 provided on the second main nozzle pipe 22.

Note that the rectangular follow-up nozzle pipe 29 has an outflow hole in a hollow support shaft provided on the lower surface of the middle part of the second main nozzle pipe 22 so as to communicate with the inside thereof, and an annular shape inside that is rotatably attached around the outflow hole. By attaching the rear end to a nozzle header having a space, it may be configured to be able to freely rotate horizontally.

The fuselage 1 includes a second main nozzle pipe 22 at a height position of the guide roller 30 of the rectangular follow-up nozzle pipe 29.
A guide rail 36 in the shape of a rectangular frame substantially the same as that of the cleaning rack R with four arcuate corners is installed so as to surround the revolving portion of the swivel part, and a guide roller 30 runs along the inner periphery of the guide rail 36. The nozzle 31 is configured to follow a guide rail 36 and move on its rectangular locus.

Note that a bent nozzle pipe similar to the bent nozzle pipe 20' may be provided in the second main nozzle pipe 22 instead of the first main nozzle pipe 20, or may be provided in both nozzle pipes 20 and 22. .

Furthermore, a rectangular follow-up nozzle pipe similar to the rectangular follow-up nozzle pipe 29 may be provided in the second main nozzle pipe 22 instead of the first main nozzle pipe 20, or may be provided in both nozzle pipes 20 and 22. good.

A sub-liquid support pipe 37 with a closed tip is vertically arranged in the center of the main liquid-supply support pipe 11, and its tip protrudes from the closed end of the main liquid-supply support pipe 11, Finished water from a finished water tank is fed under pressure to the liquid supply support pipe 37 from a finished water pump 38 via an auxiliary liquid supply pipe 39 .

An outflow hole 40 is provided in the peripheral wall at the tip of the sub-liquid support tube 37, and an annular nozzle header 41 is rotatably connected to the outer periphery where the outflow hole 40 is located. The rotary sliding contact portion is fitted in a water-sealed state, and an annular space 42 is formed therein.

Around the nozzle header 41, elongated finishing nozzle pipes 43 are projecting laterally symmetrically about the axis of the nozzle header 41, and each has an opening at its mounting base end communicating with the annular space 42.

The finishing nozzle pipe 43 is provided with a plurality of nozzles 44 along its longitudinal direction.
are oriented in the orientation direction (upward direction) of the sub-liquid supply support pipe 37, and are installed slightly inclined to one side in the circumferential direction centered on the axis of the sub-liquid support pipe 37, so that the liquids are injected from each of them. The finishing nozzle pipe 43 and the nozzle header 41 are horizontally rotated around the sub-liquid supply support pipe 37 by the reaction force of the cleaning liquid jet.

The above-mentioned cleaning liquid injection device 10 may be used as the upper cleaning liquid injection device 10' in a box-type rack-type automatic washing machine. When cleaning while holding, use the upper cleaning liquid spray device 1.
In order to clean the outer surface of the tableware, which has less dirt than the inner surface, the injection of 0' eliminates the second main nozzle pipe 22 and the rectangular follow-up nozzle pipe 29, and consists of the first main nozzle pipe 10 and the finishing nozzle pipe 43. Use a cleaning liquid injection device.

Cleaning liquid injection device 10, 1 configured as described above
When cleaning tableware W such as bowls and plates with the inside surface facing down diagonally in a washing rack R using a box-type rack-type automatic washing machine using 0', first The cleaning liquid pump 12 is driven to forcefully feed the cleaning liquid from the cleaning liquid tank 6 to the main liquid supply support pipe 11 via the main liquid supply pipe 13.

The pressure-fed cleaning liquid passes from the upper and lower outflow holes 14 and 15 of the main liquid supply support pipe 11 through the annular spaces 18 and 19 of the first nozzle header 16 and the second nozzle header 17, and then flows into the first main nozzle pipe 20 and the second main nozzle header. It flows into the nozzle pipe 22, the bent nozzle pipe 20', the first sub nozzle pipe 21 and the second sub nozzle pipe 23, and the nozzle 2
While spraying the cleaning liquid from the nozzles 26 and 26', the first main nozzle pipe 20 and the second main nozzle pipe 22 are horizontally turned in opposite directions by the reaction force of the spray.

Since the cleaning liquid jetted from the nozzles 24 and 25 moves in opposite directions on the circumference while jetting out at inclinations in opposite directions, they hit the tableware W at opposite angles, as shown in FIG. To thoroughly clean tableware W by spraying a cleaning liquid onto the inner and outer surfaces thereof without leaking.

Further, the cleaning liquid is also jetted from the first main nozzle pipe 20 of the upper cleaning liquid jetting device 10', and mainly cleans the outer periphery of the upper half of the tableware W.

On the other hand, the cleaning liquid injected from the nozzles 26 and 26' is transmitted through the first main nozzle pipe 20 and the second main nozzle pipe 22.
The washing rack R moves around the circumference of the washing rack R while spraying a washing liquid toward the surroundings and the outside thereof, and washes the dishes W held at the surroundings and four corners of the washing rack R.

Further, the cleaning liquid in the second main nozzle pipe 22 is introduced into the rectangular follow-up nozzle pipe 29 and is ejected from the nozzle 31 at the tip thereof.

This rectangular follow-up nozzle pipe 29 is the second main nozzle pipe 2
2, and travels on the rectangular trajectory while pressing the guide roller 30 at the tip against the guide rail 36 by the pulling force of the return spring 34, and the cleaning liquid is sprayed from the nozzle 31 that moves together with it. The dishes W held around and at the four corners of the washing rack R are washed.

Therefore, the tableware W held at the periphery and four corners of the cleaning rack R is removed from the nozzle 2 of the bent nozzle pipe 29.
6, 26' and the nozzle 31 of the rectangular follow-up nozzle pipe 29
Cleaning is done reliably and thoroughly by spraying cleaning liquid from the

After the cleaning liquid is repeatedly sprayed from each rotating nozzle for a required period of time, the cleaning liquid pump 12 is stopped, and the finishing water pump 3
8 operates, and the sub-liquid supply pipe 39 is connected to the sub-liquid supply support pipe 37.
Finished water from the finished water tank is pumped through.

The pressure-fed finishing water flows from the outflow hole 40 of the liquid supply support pipe 37 through the annular space 42 of the nozzle header 41 into the finishing nozzle pipe 43, and while the finishing water is jetted from each nozzle 44, the jetting reaction force is The finishing nozzle pipe 43 is horizontally rotated.

In this way, by spraying the finishing water from above and below while rotating, the tableware W is finished washed for a required period of time, and the washing process is completed.

In the above embodiment, a box-type automatic washing machine was described in which the washing rack R was kept stationary in the washing chamber for washing. However, in the conveyor conveyance type automatic dishwashing machine shown in While the cleaning rack R is placed on and conveyed, cleaning is carried out by the upper and lower cleaning liquid spraying devices 10, 10', and the finishing nozzle 8 at the rear performs final cleaning.
0 and 10' are not provided with a mechanism related to the finishing nozzle pipe 43.

``Effect of the invention'' As described above, according to this invention, the long first and second main nozzle pipes arranged above and below the main liquid supply support pipe are tilted in opposite directions while rotating in opposite directions. Since the cleaning liquid is sprayed from the nozzle, the cleaning liquid is reliably sprayed onto the entire inner and outer surfaces of the bowls etc. held vertically in the washing rack, without causing any incomplete cleaning. Can be washed closely.

In addition, on the extension of the center of rotation of the main nozzle pipe,
Since the cleaning liquid is repeatedly injected from the nozzles of the first and second sub-nozzle pipes, the object to be cleaned located above the center of rotation is also reliably cleaned.

Furthermore, while the guide roller at the tip of the rectangular follow-up nozzle tube runs on the guide rail, the cleaning liquid is injected from the nozzle at the tip, and the rotating portion of the first main nozzle tube and the second main nozzle tube is sprayed from the nozzle of the bent nozzle tube. Since the cleaning liquid is sprayed around the outer periphery, objects to be cleaned located at the four corners and the periphery of the cleaning rack can also be reliably cleaned.

Therefore, the cleaning liquid is repeatedly sprayed onto the cleaning items in the cleaning rack almost uniformly over the entire area, making it possible to reliably clean the items without causing any areas where the cleaning power is insufficient.

In addition, in a box-type automatic dishwasher that washes the washing rack in a stationary state, after washing with the above-mentioned washing liquid, finishing water is force-fed from the sub-liquid support pipe to the finishing nozzle pipe, and the washing rack is tilted diagonally. Finish cleaning is performed while automatically swirling by the reaction force of the finishing water sprayed from the nozzle.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional side view showing an example of a box-type rack-type automatic tableware washing machine using the cleaning liquid injection device of this invention, and Fig. 2 is a conveyor conveyance type rack-type automatic dishwasher using the cleaning liquid injection device of this invention. FIG. 3 is a front view showing an embodiment of the cleaning liquid spraying device of this invention; FIG. 4 is a front view of the main nozzle pipe; FIG. 5 is a side view of the sub nozzle. 6 is a plan view of the pipe section, FIG. 7 is a longitudinal side view showing the installation state of the rectangular follow-up nozzle pipe, and FIG. 8 is a side view showing the state of cleaning by the cleaning liquid injection device of this invention. , FIG. 9 is a side view showing a cleaning state by a conventional cleaning liquid injection device. 1... Aircraft, 2... Chain conveyor, 3...
Hood, 4...Cleaning chamber, 5...Drainage receiver, 6...Cleaning liquid tank, 7, 7'...Cleaning liquid injection device, 8...
...Finish cleaning nozzle, 9... Frame, 10, 10'...
...Cleaning liquid injection device, 11...Main liquid supply support pipe, 12
...Cleaning liquid pump, 13...Main liquid pipe, 14,1
5...Outflow hole, 16...First nozzle header, 17
... Second nozzle header, 18 ... Annular space, 19
...Annular space, 20...First main nozzle pipe, 20'
... Bent nozzle pipe, 21 ... First sub-nozzle pipe, 2
2... Second main nozzle pipe, 23... Second sub-nozzle pipe, 24, 25... Nozzle, 26, 26'... Nozzle, 27, 28... Nozzle, 29... Rectangular follow-up nozzle pipe, 30... ... Guide roller, 31 ... Nozzle, 32 ... Bearing, 33 ... Inflow hole, 34 ... Return spring, 35 ... Stopper, 36 ... Guide rail, 37 ... Sub-liquid supply support pipe, 38 ... Finishing Water pump, 39... Sub-liquid pipe, 40... Outflow hole, 41
... Nozzle header, 42 ... Annular space, 43 ...
Finishing nozzle pipe, 44...Nozzle, R...Washing rack, W...Object to be cleaned.

Claims (1)

[Claims for Utility Model Registration] 1. A vertical main liquid supply support pipe connected to a cleaning liquid pump via a liquid supply pipe and having outflow holes at two places on the upper and lower sides of the peripheral wall and closed at the tip; A first nozzle header and a second nozzle header are rotatably fitted onto the outer periphery of the liquid support tube where the upper and lower outlet holes are located, and have an annular space therein that communicates with the outlet hole of the sub-liquid support tube; A plurality of nozzles are provided along the longitudinal direction of the first nozzle header, which are connected to the annular space and are installed substantially horizontally, and are slightly inclined to one side in the circumferential direction centered on the axis of the main liquid supply support tube. a first main nozzle pipe;
A nozzle, which is attached to the second nozzle header substantially horizontally so as to communicate with the annular space thereof and is inclined in the opposite direction to the nozzle of the first main nozzle pipe, is positioned along the longitudinal direction at a different position from the nozzle of the first main nozzle pipe. A plurality of second main nozzle pipes are provided, and a short main nozzle pipe is installed at other positions of the first nozzle header and the second nozzle header, respectively, and the nozzle is directed forward in the protruding direction of the main liquid supply support pipe. The rear end of the first sub-nozzle pipe, the second sub-nozzle pipe, and the nozzle header provided in one or both of the first main nozzle pipe or the second main nozzle pipe in communication with the inside thereof is centered on the vertical axis. A nozzle and a guide roller are attached to a tip that projects forward from the tip of the first main nozzle pipe or the second main nozzle pipe, and the first A rectangular follow-up nozzle pipe equipped with a return spring that applies a pulling force in the rotational direction of the main nozzle pipe or the second main nozzle pipe communicates with the tip of either or both of the first nozzle pipe or the second nozzle pipe. A bent nozzle pipe is bent horizontally at a required angle, and a required number of nozzles are attached to the bent nozzle pipe, and the rectangular follow-up nozzle pipe is positioned at the height of the guide roller at the tip of the rectangular follow-up nozzle pipe so that its circumference is surrounded by a rectangular shape. A cleaning liquid injection device for an automatic washing machine, characterized by comprising a guide rail installed inside the washing machine. 2 A vertical main liquid supply support pipe that is connected to the cleaning liquid pump via a liquid feed pipe and whose tip is closed and has outflow holes at two locations on the top and bottom of the peripheral wall, and is connected to the finishing water pump via a liquid feed pipe. and a vertical auxiliary liquid supply support tube whose distal end passes through the liquid supply support tube and protrudes from its closed end, and which has an outflow hole in the peripheral wall of the distal end, and a vertical sub-liquid support tube that extends above and below the main liquid supply support tube. a first nozzle header and a second nozzle header which are rotatably fitted around the outer periphery where each outflow hole is located and have an annular space therein communicating with the outflow hole of the sub-liquid support pipe; and the sub-liquid support pipe. a nozzle header rotatably fitted around the outer periphery where the outflow hole of the sub-liquid support tube is located and having an annular space therein that communicates with the outflow hole of the auxiliary liquid supply support tube; A first main nozzle pipe, which is installed horizontally and has a plurality of nozzles along the longitudinal direction that are inclined at a required angle to one side in the left-right direction with respect to the perpendicular line in the radial direction, communicates with the annular space of the second nozzle header. a second main nozzle pipe that is installed substantially horizontally and has a plurality of nozzles that are inclined in the opposite direction to the nozzles of the first main nozzle pipe and are provided along the longitudinal direction at different positions from the nozzles of the first main nozzle pipe; A short first auxiliary nozzle pipe and a second auxiliary nozzle pipe installed at other positions of the first nozzle header and the second nozzle header, respectively, with the nozzles facing forward in the protruding direction of the main liquid supply support pipe; , a long elongated nozzle installed in the nozzle header so as to communicate with the annular space thereof, and having a plurality of nozzles along the longitudinal direction that are slightly inclined to one side in the circumferential direction centered on the axis of the sub-liquid supply support tube. A finishing nozzle pipe, and a nozzle header provided in one or both of the first main nozzle pipe or the second main nozzle pipe in communication with the inside thereof, the rear end of which is horizontally pivotable about a vertical axis,
and a nozzle and a guide roller are attached to a distal end that is connected to the inside of the nozzle header and protrudes forward from the distal end of the first main nozzle pipe or the second main nozzle pipe; A rectangular follow-up nozzle pipe equipped with a return spring that applies a pulling force in the rotational direction of the main nozzle pipe is connected to the tip of either one or both of the first nozzle pipe or the second nozzle pipe and A bent nozzle pipe which is bent at an angle and has a required number of nozzles attached thereto, and a guide installed in the washing machine so as to surround the circumferential part in a rectangular shape at the height of the guide roller at the tip of the rectangular follow-up nozzle pipe. A cleaning liquid injection device for an automatic cleaning machine, characterized by comprising a rail.