CN211844372U - Emptying device of self-service car washer and novel self-service car washer - Google Patents

Abstract

The application relates to an emptying device of a self-service car washer and a novel self-service car washer. Emptying devices is used for the water in squirt and the water pipe of the self-service car washer of evacuation, include: the self-service car washer comprises an emptying switch, a drainage electromagnetic valve, a manual valve, a clear water electromagnetic valve and a foam electromagnetic valve which are arranged inside the self-service car washer, and a supporting mechanism arranged outside the self-service car washer. This application is through setting up a plurality of normally open solenoid valves on the water pipe in self-service car washer to control a plurality of normally open solenoid valves respectively through self-service car washer original relay, thereby rivers break-make and route in can the self-service car washer of effective control, and, prop the height with outside water pipe through self-service car washer outside supporting mechanism, thereby can utilize gravity with the water pipe evacuation naturally, simple structure, it is with low costs, and respond well.

Description

Emptying device of self-service car washer and novel self-service car washer

Technical Field

The application relates to self-service car washer technical field especially relates to an emptying devices and novel self-service car washer of self-service car washer.

Background

Along with the continuous improvement of living standard of people, the number of private cars is continuously increased, the car washing demand is increased, and the self-service car washer is rapidly developed due to the reasons of convenience, rapidness, low price and the like.

Present self-service car washer is because the reason of its self structure, the unable evacuation of water in squirt and the water pipe usually after using, also can stay in squirt or water pipe, the design can not influence follow-up use under the normal conditions like this, but because self-service car washer generally all sets up outdoors, the outdoor temperature in many regions of china all can drop to below the zero degree when winter, at this moment, remaining water can freeze in squirt or the water pipe, further can lead to squirt or water pipe jam or even break. In order to avoid the above problems, certain measures must be taken, so that the water pipe inside the car washer is well solved at present only by keeping the water pipe above zero degree through a heating device, and the water gun and the water pipe outside the car washer are inconvenient to heat, so that the water inside the water pipe must be emptied after use, but no simple and reliable method is available at present for achieving the purpose.

SUMMERY OF THE UTILITY MODEL

The application provides an emptying devices and novel self-service car washer of self-service car washer to solve the problem of the unable evacuation well of squirt and the water in the water pipe of self-service car washer.

The above object of the present application is achieved by the following technical solutions:

in a first aspect, an embodiment of the application provides an emptying device of a self-service car washer, which is used for emptying a water gun and water in a water pipe of the self-service car washer, wherein the self-service car washer internally comprises a water pump, a water inlet pipe and a water outlet pipe which are connected with the water pump, and a water pump relay, a clean water relay and a foam relay which are used for controlling the water outlet of the water pump; one end of the water outlet pipe, which is far away from the water pump, is connected with one end of a first tee joint, and the other two ends of the first tee joint are respectively connected with a clear water gun and a foam gun outside the self-service car washer through a clear water pipe and a foam pipe; when the water pump relay and the clear water relay are both closed, the water pump discharges clear water, and when the water pump relay and the foam relay are both closed, the water pump discharges foam water;

the evacuation device includes:

the self-service car washer comprises an emptying switch, a drainage electromagnetic valve, a manual valve, a clear water electromagnetic valve and a foam electromagnetic valve which are arranged inside the self-service car washer, and a supporting mechanism arranged outside the self-service car washer; the drainage electromagnetic valve, the clear water electromagnetic valve and the foam electromagnetic valve are all normally open electromagnetic valves;

the manual valve is arranged on a drain pipe led out through a second tee joint, the second tee joint is arranged on the water outlet pipe and is positioned between the water pump and the first tee joint, the drain electromagnetic valve is arranged between the second tee joint and the manual valve, the clear water electromagnetic valve is arranged on the clear water pipe, and the foam electromagnetic valve is arranged on the foam pipe;

the water draining electromagnetic valve is also connected with a first switch of the emptying switch and then electrically connected with the water pump relay, the clear water electromagnetic valve is also connected with a second switch of the emptying switch and then electrically connected with the foam relay, and the foam electromagnetic valve is also connected with a third switch of the emptying switch and then electrically connected with the clear water relay;

the supporting mechanism is used for supporting a clean water pipe and a foam pipe which are positioned outside the self-service car washer to be high, so that water in the clean water pipe and the foam pipe is emptied by gravity; wherein, when needing to be emptied, the clear water gun and the foam gun are both kept in an open state.

Optionally, the height of the manual valve is smaller than or equal to the height of the drainage electromagnetic valve, and the height of the drainage electromagnetic valve is smaller than or equal to the heights of the clean water electromagnetic valve and the foam electromagnetic valve.

Optionally, the manual valve, the drain solenoid valve, the clean water solenoid valve and the foam solenoid valve are located at the same height.

Optionally, the support mechanism is disposed on the self-service car washer housing or is independently disposed with respect to the self-service car washer.

Optionally, the top of the support mechanism comprises a cross bar.

In a second aspect, an embodiment of the present application further provides a novel self-service car washer, including the above-mentioned self-service car washer and the emptying device of the self-service car washer.

Optionally, the self-service car washer comprises a control mainboard integrated with a single chip microcomputer;

on the premise that the emptying switch is closed: the single chip microcomputer is used for keeping the clean water relay closed when a clean water instruction triggered by a user is obtained, so that the foam electromagnetic valve is electrified and closed, and the water pump relay is closed after a first preset time is delayed; the single chip microcomputer is also used for keeping the foam relay closed when a foam instruction triggered by a user is obtained, so that the clean water electromagnetic valve is electrified and closed, and the water pump relay is closed after a second preset time is delayed; the single chip microcomputer is also used for enabling the water pump relay, the clean water relay and the foam relay to be switched off when a pause instruction or an end instruction triggered by a user is obtained.

Optionally, the novel self-service car washer further comprises a human-computer interaction unit connected with the control mainboard.

Optionally, the novel self-service car washer is still including setting up the inside heating device of novel self-service car washer, it is right to be used for each water pipe of novel self-service car washer inside heats, makes its inside temperature maintain more than zero.

Optionally, the heating device is a heat tracing band and heat preservation cotton.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

in the technical scheme that the embodiment of this application provided, through set up a plurality of normally open solenoid valves on the water pipe in self-service car washer to control a plurality of normally open solenoid valves respectively through self-service car washer original relay, thereby rivers break-make and route in can the self-service car washer of effective control, and, prop the height with outside water pipe through the outside supporting mechanism of self-service car washer, thereby can utilize gravity to empty the water pipe naturally, moreover, the steam generator is simple in structure, and is with low costs, and respond well.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural view of a novel self-service car washer provided in an embodiment of the present application;

fig. 2 is a top view of the water pump and the pipeline connected with the water pump inside the novel self-service car washer shown in fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

At present, in order to empty the squirt and the water in the water pipe of self-service car washer after using, some producers have additionally set up the exhaust pump in self-service car washer inside to use special squirt and foam rifle, all need start the exhaust pump after the car washing is accomplished at every turn, thereby empty the water in squirt and foam rifle and the pipeline, this kind of emptying devices cost is higher, and the unstable performance, be not convenient for use widely. Therefore, in many cases, the self-service car washer is either moved to the indoor use or shut down to stop the business.

In order to solve the problem, the application provides an emptying device of a self-service car washer and a novel self-service car washer comprising the emptying device.

Examples

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a novel self-service car washer according to an embodiment of the present application, and fig. 2 is a top view of a water pump 7 and a pipeline connected to the water pump 7 in the novel self-service car washer shown in fig. 1. The novel self-service car washer comprises a self-service car washer and an emptying device, wherein the emptying device is used for emptying a water gun of the self-service car washer and water in a water pipe, as shown in figures 1 and 2, the self-service car washer internally comprises a water pump 7, a water inlet pipe 20 and a water outlet pipe 21 which are connected with the water pump 7, and a water pump relay 15, a clear water relay 16 and a foam relay 17 which are used for controlling the water outlet of the water pump 7; one end of the water outlet pipe 21, which is far away from the water pump 7, is connected with one end of a first tee joint 8, and the other two ends of the first tee joint 8 are respectively connected with a clear water gun 12 and a foam gun 13 outside the self-service car washer through a clear water pipe 10 and a foam pipe 11; when the water pump relay 15 and the clear water relay 16 are both closed, the water pump 7 discharges clear water, and when the water pump relay 15 and the foam relay 17 are both closed, the water pump 7 discharges foam water;

the evacuation device includes:

the automatic car washing system comprises an emptying switch 1, a drainage electromagnetic valve 2, a manual valve 3, a clear water electromagnetic valve 4 and a foam electromagnetic valve 5 which are arranged inside a self-service car washer, and a supporting mechanism 6 arranged outside the self-service car washer; wherein, the water discharge electromagnetic valve 2, the clear water electromagnetic valve 4 and the foam electromagnetic valve 5 are all normally open electromagnetic valves;

the manual valve 3 is arranged on a drain pipe 22 led out through a second tee joint 9, wherein the second tee joint 9 is arranged on a water outlet pipe 21 and is positioned between the water pump 7 and the first tee joint 8, the drain electromagnetic valve 2 is arranged between the second tee joint 9 and the manual valve 3, the clean water electromagnetic valve 4 is arranged on the clean water pipe 10, and the foam electromagnetic valve 5 is arranged on the foam pipe 11;

the water discharge electromagnetic valve 2 is also connected with a first switch of the emptying switch 1 and then electrically connected with a water pump relay 15, the clear water electromagnetic valve 4 is also connected with a second switch of the emptying switch 1 and then electrically connected with a foam relay 17, and the foam electromagnetic valve 5 is also connected with a third switch of the emptying switch 1 and then electrically connected with a clear water relay 16;

the supporting mechanism 6 is used for lifting a clean water pipe 10 and a foam pipe 11 which are positioned outside the self-service car washer so as to empty water in the clean water pipe and the foam pipe by using gravity; wherein, when the air needs to be exhausted, the clear water gun 12 and the foam gun 13 are both kept in an opening state.

It should be noted that fig. 1 only shows a partial structure of the novel self-service car washer, and structures such as a clean water tank and the like are not shown.

For existing self-service car washes that do not include such an evacuation device, the front panel typically includes function buttons 19, such as "clear water button", "foam button", "pause button", "end button", and other buttons that are not associated with a flush. When a user presses a 'clear water key', a 'clear water signal' is sent to the control mainboard 14, the control mainboard 14 controls the water pump relay 15 and the clear water relay 16 to be closed, when the water pump relay 15 is closed, the water pump 7 connected with the water pump relay is powered on and then started, when the clear water relay 16 is closed, the normally closed electromagnetic valve connected with the clear water relay and arranged on a pipeline between the clear water tank and the water pump 7 is powered on and then opened, clear water in the clear water tank flows into the water pump 7 through the water inlet pipe 20 at the moment, the clear water enters the water outlet pipe 21 after being pressurized by the water pump 7 and then flows to the clear water gun 12 and the foam gun 13 respectively, if the user presses a trigger of the clear water gun 12, clear water is sprayed out, and if the user presses the trigger of course, a small amount of clear water flows out (instead of spraying out, because the interior of the. Similarly, when the user presses the 'foam key', the water pump relay 15 and the foam relay 17 are closed, the normally closed electromagnetic valve connected with the foam water tank is switched on, the foam water flows into the water pump 7 and then enters the foam gun 13 connected with the water outlet pipe 21 after being pressurized, and when the user presses the trigger of the foam gun 13, the foam water is sprayed. When the user presses the 'pause key' or the 'end key', the water pump relay 15, the clean water relay 16 and the foam relay 17 are all disconnected, and the water pump 7 stops working.

It should be noted that, in the existing self-service car washer, the above control of each relay is usually implemented by the control main board 14 integrated with a single chip microcomputer.

To the novel self-service car washer that contains emptying devices that this application provided, if the temperature is not less than zero, then can not launch the evacuation function, this moment, the managers only need with evacuation switch 1 disconnection and with manual valve 3 close can, evacuation switch 1 disconnection back, drainage solenoid valve 2, the power supply line of clear water solenoid valve 4 and foam solenoid valve 5 is open circuit, that is, even water pump relay 15, clear water relay 16 and foam relay 17 are closed, three solenoid valve also does not energize, because three solenoid valve is normally open solenoid valve, then water can freely pass through when it does not energize, because manual valve 3 closes again, then water can not discharge from drain pipe 22, and only can follow clear water rifle 12 or foam rifle 13 blowout according to correct route. Therefore, when the emptying function is not started, for the user, the novel self-service car washer of the application has the same use mode as the existing common self-service car washer.

If the emptying function is activated, the manager needs to close the emptying switch 1 and open the manual valve 3, and furthermore, to press and hold the triggers of the clear water gun 12 and the foam gun 13, i.e. to keep them open. After the arrangement, when a user washes a vehicle, the user presses the 'clear water key' as an example, at this time, the control main board 14 enables the water pump relay 15 and the clear water relay 16 to be closed, and then, on one hand, the water pump 7 normally sucks and discharges pressurized clear water; on the other hand, since the water pump relay 15 is closed, the water discharge solenoid valve 2 is energized and closed, so that the clean water does not flow out from the water discharge pipe 22, and since the clean water relay 16 is closed, the foam solenoid valve 5 is energized and closed, so that the clean water does not enter the foam pipe 11, that is, the clean water can only enter the clean water pipe 10 and be sprayed out from the clean water gun 12. After the user finishes using, novel self-service car washer becomes standby state, because drainage solenoid valve 2, clear water solenoid valve 4 and foam solenoid valve 5 do not all switch on, then manual valve 3, drainage solenoid valve 2, the pipeline between clear water solenoid valve 4 and the clear water rifle 12 is the route, manual valve 3, drainage solenoid valve 2, the pipeline between foam solenoid valve 5 and the foam rifle 13 also is the route, this moment, prop high back with outside clear water pipe 10 and foam pipe 11 through supporting mechanism 6, remaining water can be followed squirt end and drain pipe 22 end (3 ends of valve) nature discharge respectively in clear water pipe 10 and the foam pipe 11. The support mechanism 6 may be a separate bracket as shown in fig. 1, or may be an integrated structure disposed on the housing of the novel self-service car washing machine, which is not limited to this. In addition, in some embodiments, as shown in fig. 1, the top of the supporting mechanism 6 may further include a cross bar (or an inclined bar) which is used to support a long external water pipe (in an actual scenario, for the convenience of use, the water pipe outside the self-service car washing machine is generally about 5 meters), so as to ensure that the residual water in the water pipe can be effectively drained.

It should be noted that, in practical implementation, in order to drain all the water flowing to the end of the drain pipe 22 (the end of the manual valve 3), it is generally recommended to set: the height of the manual valve 3 is less than or equal to that of the drainage electromagnetic valve 2, and the height of the drainage electromagnetic valve 2 is less than or equal to that of the clear water electromagnetic valve 4 and the foam electromagnetic valve 5. For example, the following settings are set: the manual valve 3, the drain solenoid valve 2, the clear water solenoid valve 4 and the foam solenoid valve 5 (and the pipes between the valves) are located at the same height. Of course, consider that in fact the final purpose with the water evacuation is that prevent that water from freezing to influence novel self-service car washer and using, consequently, even novel self-service car washer inside water does not completely empty also can handle through other modes, for example, at the inside heating device that sets up of novel self-service car washer, heat each pipeline of novel self-service car washer inside, make its inside temperature not less than zero. In some embodiments, the heating device may be a heat tracing band and heat insulation cotton commonly used in existing self-service car washing machines.

In the technical scheme that the embodiment of this application provided, through set up a plurality of normally open solenoid valves on the water pipe in self-service car washer to control a plurality of normally open solenoid valves respectively through self-service car washer original relay, thereby rivers break-make and route in can the self-service car washer of effective control, and, prop the height with outside water pipe through self-service car washer outside supporting mechanism 6, thereby can utilize gravity to empty the water pipe naturally, moreover, the steam generator is simple in structure, and is with low costs, and respond well.

However, after the research of the applicant, the novel self-service car washing machine has a problem in use after the emptying function is started: because clear water gun 12 has been set up to normally open state in advance, that is to say, press "clear water key" back, clear water can be directly spout from clear water gun 12 (when not starting the evacuation function, need the user to press the squirt trigger just can spray water), must carry out effectual early warning to the user before the user uses so, prevent that the squirt from spraying water suddenly and bring the trouble for the user. Therefore, in the implementation, the user may be prompted through the human-computer interaction unit 18, such as a display screen, a speaker, and the like, and at the same time, the setting may be: for the clear water key and the foam key, only when the keys are pressed twice, the control main board 14 can close the corresponding relay, and after the user presses the clear water key (or the foam key) for the first time, the human-computer interaction unit 18 reminds the user that the clear water gun 12 (or the foam gun 13) is opened, and the user is requested to press the same key once after taking the water gun, for example, the information of 'requesting to take the clear water gun 12 (the foam gun 13) first and then pressing the clear water key (the foam key) to start flushing (foaming)' is displayed through the display screen and is broadcasted through voice.

In this application, can also further set up the singlechip that control mainboard 14 contained into: on the premise that the emptying switch 1 is closed (i.e., on the premise that the emptying function is enabled): when a clear water instruction triggered by a user is obtained, firstly, the clear water relay 16 is kept closed, so that the foam electromagnetic valve 5 is powered on and closed, and the water pump relay 15 is closed after a first preset time is delayed; when a foam instruction triggered by a user is acquired, firstly, the foam relay 17 is kept closed, so that the clean water electromagnetic valve 4 is electrified and closed, and after a second preset time is delayed, the water pump relay 15 is closed; and when a pause instruction or an end instruction triggered by a user is obtained, the water pump relay 15, the clean water relay 16 and the foam relay 17 are all switched off. The first preset time and the second preset time may be the same (for example, 7 seconds) or different, and are not limited. In addition, in the specific implementation, the corresponding delay operation can be realized through the single chip timer T0 or T1, and the like, which is common in the prior art and will not be described in detail.

That is, taking the user's requirement for clean water as an example, the control main board 14 firstly closes the clean water relay 16, on one hand, the normally closed electromagnetic valve at the end of the water inlet pipe 20 of the water pump 7 is opened, on the other hand, the foam electromagnetic valve 5 is closed, and then the water pump relay 15 is closed after delaying the first preset time, so that the water discharge electromagnetic valve 2 is closed and the water pump 7 is started. The reason for this is that if the water pump relay 15 and the fresh water relay 16 are closed at the same time, the high-pressure water output by the water pump 7 will reach the foam solenoid valve 5 during the process of switching the foam solenoid valve 5 from the open state to the closed state because the water pipe inside the self-service car washer is short, and the foam solenoid valve 5 during the valve opening or closing process is easily damaged due to the action of the high-pressure water. In the application, the clear water electromagnetic valve 4 and the foam electromagnetic valve 5 are closed firstly, then the water pump 7 is started, and a passage (the clear water gun 12 and the foam gun 13 are both kept in an open state) is ensured to exist when the water pump 7 outputs high-pressure water, so that the service lives of the clear water electromagnetic valve 4 and the foam electromagnetic valve 5 can be effectively prolonged.

In some embodiments, if the novel self-service car washer comprises a display screen, a loudspeaker and other human-computer interaction units, the user can be prompted through the forms of picture display countdown numbers, broadcast countdown voices and the like when the time delay operation is carried out.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. The emptying device of the self-service car washer is characterized by being used for emptying a water gun and water in a water pipe of the self-service car washer, wherein the self-service car washer internally comprises a water pump, a water inlet pipe and a water outlet pipe which are connected with the water pump, a water pump relay, a clear water relay and a foam relay which are used for controlling the water outlet of the water pump; one end of the water outlet pipe, which is far away from the water pump, is connected with one end of a first tee joint, and the other two ends of the first tee joint are respectively connected with a clear water gun and a foam gun outside the self-service car washer through a clear water pipe and a foam pipe; when the water pump relay and the clear water relay are both closed, the water pump discharges clear water, and when the water pump relay and the foam relay are both closed, the water pump discharges foam water;

the evacuation device includes:

the self-service car washer comprises an emptying switch, a drainage electromagnetic valve, a manual valve, a clear water electromagnetic valve and a foam electromagnetic valve which are arranged inside the self-service car washer, and a supporting mechanism arranged outside the self-service car washer; the drainage electromagnetic valve, the clear water electromagnetic valve and the foam electromagnetic valve are all normally open electromagnetic valves;

the manual valve is arranged on a drain pipe led out through a second tee joint, the second tee joint is arranged on the water outlet pipe and is positioned between the water pump and the first tee joint, the drain electromagnetic valve is arranged between the second tee joint and the manual valve, the clear water electromagnetic valve is arranged on the clear water pipe, and the foam electromagnetic valve is arranged on the foam pipe;

the water draining electromagnetic valve is also connected with a first switch of the emptying switch and then electrically connected with the water pump relay, the clear water electromagnetic valve is also connected with a second switch of the emptying switch and then electrically connected with the foam relay, and the foam electromagnetic valve is also connected with a third switch of the emptying switch and then electrically connected with the clear water relay;

the supporting mechanism is used for supporting a clean water pipe and a foam pipe which are positioned outside the self-service car washer to be high, so that water in the clean water pipe and the foam pipe is emptied by gravity; wherein, when needing to be emptied, the clear water gun and the foam gun are both kept in an open state.

2. The emptying device according to claim 1, wherein the height of the manual valve is less than or equal to the height of the drainage solenoid valve, and the height of the drainage solenoid valve is less than or equal to the heights of the clean water solenoid valve and the foam solenoid valve.

3. An evacuation device according to claim 1 or 2, wherein the manual valve, the drain solenoid valve, the fresh water solenoid valve and the foam solenoid valve are located at the same height.

4. The evacuation device of claim 1, wherein the support mechanism is disposed on the self-service car washer housing or is disposed independently of the self-service car washer.

5. The evacuation device of claim 1, wherein a top of the support mechanism comprises a cross bar.

6. A novel self-service car washer, characterized by comprising the emptying device of the self-service car washer according to any one of claims 1 to 5 and a corresponding self-service car washer.

7. The novel self-service car washer according to claim 6, wherein the self-service car washer comprises a control main board integrated with a single chip microcomputer;

on the premise that the emptying switch is closed: the single chip microcomputer is used for keeping the clean water relay closed when a clean water instruction triggered by a user is obtained, so that the foam electromagnetic valve is electrified and closed, and the water pump relay is closed after a first preset time is delayed; the single chip microcomputer is also used for keeping the foam relay closed when a foam instruction triggered by a user is obtained, so that the clean water electromagnetic valve is electrified and closed, and the water pump relay is closed after a second preset time is delayed; the single chip microcomputer is also used for enabling the water pump relay, the clean water relay and the foam relay to be switched off when a pause instruction or an end instruction triggered by a user is obtained.

8. The novel self-service car washer according to claim 7, further comprising a human-computer interaction unit connected with the control mainboard.

9. The novel self-service car washer according to claim 6, further comprising a heating device arranged inside the novel self-service car washer for heating each water conveying pipeline inside the novel self-service car washer to keep the temperature of water inside the novel self-service car washer above zero.

10. The novel self-service car washer according to claim 9, wherein the heating device is a heat tracing band and heat insulation cotton.

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