JPS6198833A - Prevention of freezing in car washer - 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] This invention relates to a method for preventing IF of a car wash machine that removes detergent, soap, etc., and in particular, a reliable anti-freeze measure in the liquid pipe. It has been improved to make it possible.

In general, this type of car wash machine tends to be installed outdoors and requires the use of water and liquids, so anti-freezing measures are essential, especially in cold regions.

Conventionally, as a method for preventing frozen beta horns in this type of car wash machine, water was removed by introducing air into the water supply pipe, but this alone was not enough to prevent water from forming in the dressing mixer of the water supply pipe. In contrast to cases in which compressed air could not be introduced into the liquid agent pipe and the liquid in the liquid agent pipe could not be extracted due to the pipe resistance at the outlet of the liquid agent pipe, e. How to let the liquid drop naturally by introducing air, or the liquid? ? There are four methods, such as forcibly discharging compressed air directly into the pipe by four people, but in the former, the liquid to be flowed down is a detergent/7NOx liquid that easily foams, so the liquid pipe is Bubbles appeared on the way (obstructing the flow of the coating, completely ruining the flow)
In order to prevent this, the diameter of the liquid pipe must be made larger than necessary, which may cause the inconvenience of requiring a long time to suck up the liquid after the pipe is discharged. In the latter case, if compressed air is simply introduced, the pipe resistance of the liquid agent line in the mixer will ignite, as described above, and the introduced air will flow into the liquid container side, causing the mixer to overflow. There is a problem in that if the inside of the III pipe cannot be discharged and air is discharged to the container side, the liquid agent in the container will bubble with the force of W, causing it to overflow or become unusable.

This invention was made in response to the above-mentioned problems, and provides reliable anti-freezing measures that enable smooth and complete discharge of liquid from liquid pipes.The invention will be explained in detail based on the embodiments shown in the figures below. .

FIG. 1 is a front external view of an embodiment based on the present invention. 1
is a washing 111 body formed in a gate shape, and is configured to run reciprocatingly on the rails 2, 2 and wash a ton stopped between the rails 2, 2. 3. 3 is a pair of side brushes placed on both sides of the main body. 4 is a top brush supported by brush arms 5, which swing in the front-rear direction of the main body 1, and moves according to the side shape of the heavy object to be cleaned to open and close. It moves up and down through 5. 6 and 6 are a pair of rocker brushes provided at the bottom of both sides of the main body, which are supported by arms that rotate in an approximately horizontal direction to open and close, and mainly move around the tires on the instep and the lower side of the IP body. Wash the half part. 7 is a blower nozzle installed on the main part and both sides of the car body, which blows high-pressure air to the I'lt body to scatter water droplets on the car body surface and dry it. Especially the large part nozzle It moves up and down according to the shape of the top surface of the vehicle via a link arm. 8 is a substitute panel provided on the front of the main body, and is mainly used for substitute driving of this wash!tL.

Figure 2 shows the arrangement of water spray nozzles, etc. provided in the main body 1.
? 8! FIG. 3 is an explanatory diagram showing the arrangement of the containers, and FIG. 3 is an explanatory diagram showing the connections of the pipes. Hereinafter, each pipe line will be explained based on this diagram. In the figure, 9, 10, 11, 12, 13, and 14 all have 110 water nozzles, and the second one has 10, I+, +2, +3,
+1 is a pipe material that has multiple /zururo in its 1r']
6M has been completed. 7 Nozzles 9 and 10 are water sprinkling nozzles located on the very side of the heather, and 9" mainly sprays water on the middle ground surface, and 10 sprays water on the side of heavy soil. Nozzles 11 and 13 are for detergent spraying an aqueous solution of detergent. With a nozzle, Wait/7: In Le 13, two-foam detergent is sprayed pneumatically on the four people and the vehicle to improve its adhesion to the car body and the display effect for customers.12 is Wa/ Spray the wax agent aqueous solution with a nozzle.14
is the water nozzle on the rear side of the main unit.

A pump 15 supplies pressurized water to the main body 1 via a water pipe 16. 17 is water supply Ii? 16 and the fountain nozzles 9, 10, 11 arranged in the main body 16 part.
・Water supply hoses 18, 19, which are connected to 12, 11), and 14 to branch the water supply from the pump 15 to each nozzle.
20, 21, 22 have solenoid valves 23, 24, 25, 26,
27 are respectively placed in the holder 61, and water is supplied to each nozzle.

Therefore, the water supply pipe 16, branch pipe 17 and water supply hose 18,
A water supply pipe is formed by 19, 20, Zl, and 22.

28, 29, and 30 are liquid containers provided in the main body 1,
2 Lisini east to Hook people, Z8:! OIko1 Sat/)1
．． Is there any liquid left behind? See you there, 31/32.
33C is a WLhII conduit for feeding the ingredients in the containers 28, 29, and 30, and the insertion end into at least the 8-sen subcontainer is made of a soft hose so that it can be freely removed, and the end of the pipe is connected to the water supply hose 19.・Mixers 34 and 35 installed in 20 and 21
・This mixer has a structure in which the outlet end of the liquid agent pipe is exposed to a water supply flow channel constricted in the shape of a diffuser, and the liquid agent is sucked in by the water pressure in the flow channel. It is mixed in the water supply channel. 37, 38, and 39 are the liquid agent pipes 31 and 39.
32 and 33 are set in the middle of 3 + l simple dialect,
Each is equipped with one. 1! The KF power supplied to each liquid can be adjusted using a simple knob. Reference numerals 40, 41, and 42 are electromagnetic valves that are similarly installed in the middle of the liquid agent pipes 31, 32, and 33, and are normally closed to allow water to flow from the water supply pipes to the liquid containers 28, 29, and 3.
In addition to preventing the liquid from flowing down into the liquid pipe, it also plays an important role in opening and closing during antifreeze measures, which will be described later, to clear the inside of the liquid pipe. 43 is an air tank that is connected to the near compressor and stores compressed air, and 44, 45, and 46 are each connected to the air tank and have pressure #? i Pneumatic pressure that brings air to various places? ? It is a road. This one'? Il conduit 14 is - to magnetic (
The water supply hose 21 is connected between the nozzle 13 and the mixer 36 via the i48, and the air pressure is introduced into the user 47. : Acts to discharge from the hole 13.

The pipe line 45 is connected to the water supply l1716 via a solenoid valve 49, and is mainly used to prevent freezing! When installing Fi, compressed air is sent into the water supply pipe, and the water in this water supply pipe is pumped 7 times each into 9, 10, and 11.
・Forcibly discharge water from 12, 13, and 14. Pipe 46 is connected to each liquid agent pipe 31 and 32 via a solenoid valve 50.
・Connect to 33 and send compressed air to drain the liquid agent pipe during antifreeze measures. Reference numerals 51, 52, and 53 indicate liquid level detection sensors inserted into the liquid containers 28, 29, and 30, respectively. It consists of a hydraulic pressure transmission hose that opens at It also detects that the liquid is in the liquid pipe and outputs a signal], and also drains the liquid from the liquid pipe line for +L. It is used to check whether it has been removed or is old.In addition, during this anti-freezing process, check whether the liquid pipe line is in a state where it is connected during the peritoneal test. The cutting F2 may be provided separately from the liquid level sensors 51, 52, and 53. For example, the liquid agent pipeline can be separated inside and outside the liquid M container by a coupler, and a micro switch is provided to detect this separated state. This is possible by providing a sensor consisting of, etc.

FIG. 4 is an enlarged explanation of the 8 parts of the operation panel, and shows a 6-screen display device 60 with a display device on one side and an input port 1 below it, as well as operating means on a human-powered board and a workpiece. The warnings and other information are displayed to guide you in using the product easily and smoothly. Each key of the manual Podro 1 will be explained below. Reference numeral 62 denotes a car wash course selection button in which a different car wash sequence is set for each button, which can be selected according to the customer's wishes and is distinguished by whether or not waxing is performed and the car wash speed is high or low. 6
3 is a manual button that opens and closes the side mirrors 3 and 3, raises and lowers the top bra/4, and reverses the 7"Lf7t side mirrors, which are at risk of being damaged when cleaning. 64 is a start button that starts the wash Jll course selected and set with the selection button 62. 65 is an anti-freeze button, which performs anti-freeze +1Z operation to be described later. 66 6 is a key switch for turning on the power, 67 is a membership card insertion slot, and 6 is a membership card insertion slot.
8 is a coin slot. Reference numeral 69 is a large key set having a numeric keypad 70, a return key 71, and a correction key 72, which are used to input the number of the registered member of the society and "10 data."

5th flash (a) is a flowchart diagram of the second part of the toniso operation of the present invention, and (b) is the anti-freeze routine in (,) 70-
This is a chart diagram, and this diagram will be referred to below as 4. The operation of the present invention will be explained in Q. First, (1) it is detected whether or not the washing operation is in progress, and if washing +1j is in progress, (2) it waits until the car washing is finished (substitute C).

When washing 1: ((3) is completed, a temperature sensor (not shown) built into the washing medium detects whether the PA temperature is below a certain temperature, and if it is below a certain temperature, (4) freeze prevention is performed. Execute the routine.In the standby state where no illumination is being performed, (5) If the anti-freeze button on the operation panel (() is pressed, the anti-freeze routine similar to (6) J) will be executed. Therefore, in this example, if the freezing danger temperature is below a certain level, antifreeze measures will be taken automatically every time the car is washed, and if antifreeze protection 1 button/65 is pressed on the operation panel 8. , regardless of the above-mentioned detected temperature), measures can be taken to prevent freezing (Fig. 5 (b)). First, (7)
The liquid level detection sensors 51, 52, and 53 detect whether the suction ends of the liquid agent pipes 31, 32, and 33 are inserted into the liquid in the liquid waste containers 28, 29, and 1, respectively.・If even one of the locations has been attacked by a Toru person (8)) ii + Step 6 on the operation panel 8
0 [Put the hose into the liquid 11) Remove it from the appliance. 1
It outputs a display with the following content and calls attention to work n1,
(!) Ijf is performed for a certain period of time. Then, again (1
0) Check the signals of liquid level detection sensors 51, 52, 5; 3, and check whether liquid Ii'? If the path is removed from the container (1
1) Enter the first liquid draining routine and use the solenoid valves 40, 41, and 4.
2.50 is opened for a certain period of time and the liquid agent pipe: (1.:)2.:
Pressurized air is introduced into the tube (;) and the liquid agent in the pipe is discharged. Inside the pipe at this time? Il is discharged from the suction port of the liquid agent pipe because the flow path is constricted in each connected mixer 34, 35, and 36 and the pipe resistance is large.
The liquid remains between the pneumatic introduction position of the liquid agent pipe and the mixer. When this first liquid draining routine is completed (121
After outputting an alarm to alert the user, (13) enters the brush draining routine and cleans each brush 3 and 3 as described in l11f.
・Rotate the brushes 4, 6, and 6 for a certain period of time to remove water that has adhered to the brush. After this, the water supply pipe water draining routine (14) continues, and the solenoid valves 49 and 23, 24, 2
5, 26, and 27 are opened to introduce pressure Jla″'1 into the water supply pipe, and the water in the pipe is sent to each nozzle 9, lO, and 11-12.
・Discharged from 13th and 14th.

At this time, in each pipe, the pipe resistance differs depending on the presence or absence of a mixer, the difference in nozzle type, etc., so the solenoid valves 23 and 2
4, 25, 26, 27 individually or [23, 271,
Each group such as [24, 251, and [26] is opened sequentially for a certain period of time to drain water from each pipe.
(15) Enter the second draining routine and close the solenoid valve 4.
0, 41, and 42 are left open, the solenoid valve 50 is opened to introduce compressed air into the liquid pipe line, and the remaining liquid from the first liquid draining routine is drained from the mixer side line.

As described above, a series of anti-freeze measures are repeated a number of times according to the settings, and (16) the anti-freeze routine is terminated by detecting that the set number of times has been reached. According to the liquid draining routine, the liquid is discharged from the suction side and the mixer side, respectively, and the liquid in the liquid pipe line can be completely drained. It should be noted that the order of writing the freeze prevention steps shown in Chart 70 above is not limited to the above separately provided, and even if the steps are changed in order, the same freeze prevention effect can be obtained.

The present invention has the above-mentioned configuration, in which a liquid agent pipe is opened and closed by a solenoid valve, and a pneumatic pipe is connected between the solenoid valve and the liquid mixer, and the liquid is compressed when the solenoid valve is opened and closed. Since it is configured to introduce air, in the open state, the liquid is discharged to the suction side due to the pipe resistance at both ends of the liquid pipe, and in the closed state, it is discharged to the mixer side, completely discharging the liquid in the liquid pipe. This can be used to reliably prevent freezing. Moreover, since the liquid in the liquid agent pipe is forcibly discharged by introducing compressed air, the liquid agent pipe can be formed much thinner than the above-mentioned method of introducing air into the pipe and letting it flow naturally. The small volume allows for quick suction of liquid even when draining. It is also equipped with a means for detecting whether or not the liquid agent pipe is in communication with the liquid in the liquid container, and after confirming that the liquid agent is not communicating with the liquid, drains the liquid from the suction side of the liquid agent pipe. This eliminates the problem of foaming the liquid agent due to discharged air, making it unusable, or causing it to overflow, allowing safe and smooth anti-freezing measures to be taken.

4. Drawing (7) @+B Explanation Figure 1 is an external front view of an embodiment of the present invention. Figure 2 is an explanatory diagram showing the arrangement of the piping of the embodiment. Figure 3 is an explanatory diagram showing the piping of the embodiment. Figure 4 is an enlarged explanatory diagram of the working panel part of the embodiment: B5-I
(a) and (b) are 70-charts showing the operation according to the invention of the embodiment. In Fig. 1, the washing iso body 9, 10, 11, 12, 13, 14 is the fountain nozzle 15, the pump 16', 17, 18, 19, 20, 21, 22 are water supply pipes 28, 29, 30 are liquid containers 31, 32, 33 are liquid pipes 40, 41, 42 are solenoid valves 44, A5, 46 are pneumatic pipes 51, 52, 53 is the detection means Fig. 1 Fig. 2 Fig. 5v! J

Claims (2)

[Claims] (1) A water supply pipe leading from the pump to the fountain nozzle, and a liquid agent pipe connected to the water supply pipe via a mixer and supplying a liquid such as detergent liquid or wax liquid from a liquid container, A car wash machine that performs washing with an aqueous solution of a liquid agent, comprising a solenoid valve that opens and closes the liquid agent pipe, and a pneumatic pipe that connects to the liquid agent pipe between the solenoid valve and the mixer and introduces compressed air, A first liquid draining step of opening the electromagnetic valve and introducing compressed air into the liquid agent pipe, and a second liquid draining step of closing the electromagnetic valve and introducing compressed air into the liquid agent pipe. A method for preventing freezing in a car wash machine, characterized by: (2) A means for detecting whether or not the liquid agent pipe is in communication with the liquid in the liquid container is provided, and the means detects whether the liquid agent pipe is not communicating with the liquid in the liquid container. 1st
A method for preventing freezing in a car wash machine according to claim 1, which comprises performing a liquid draining step.