A rotatable car washing apparatus based on automatic car washing

Abstract

The application relates to a rotatable car washing device based on automatic car washing and belongs to the technical field of automobile after-service, which comprises a double-track track, a machine body, an intelligent rotating arm and an omnidirectional intelligent nozzle. The machine body is movably arranged on the double-track track, a rotating table is arranged below the machine body, the upper end of the intelligent rotating arm is fixedly connected with the rotating table, the omnidirectional intelligent nozzle is arranged at the lower end of the intelligent rotating arm, a walking motor and a rotating motor are arranged in the machine body, the walking motor and the rotating motor drive the machine body to reciprocally move along the track and the rotating table to drive the intelligent rotating arm to rotate by 360 degrees respectively, the omnidirectional intelligent nozzle is internally provided with a high-pressure nozzle, an electric conversion valve, an up-down swinging motor, a speed reducer and a left-right swinging motor, and can realize automatic switching of water / foam modes and up-down and left-right composite swinging of the high-pressure nozzle. The application realizes non-contact and full-automatic car washing, has high cleaning efficiency and does not damage car paint, has compact structure, is flexible to install and is suitable for limited spaces such as garages and gas stations.

Description

Technical Field

[0001] This invention relates to the field of automotive aftermarket services, and in particular to a rotating car wash device based on automatic car washing. Background Technology

[0002] Car washing is the most frequent and inelastic consumer activity in the automotive aftermarket. With the continued rapid growth in car ownership, traditional manual car washes rely heavily on manpower, resulting in pain points such as high labor costs, low washing efficiency, and long waiting times.

[0003] In recent years, automatic car wash equipment has developed rapidly. Based on different cleaning methods, existing automatic car wash machines can be mainly divided into two categories: contact and non-contact. According to the equipment structure, they can be further subdivided into tunnel type, gantry reciprocating type, cantilever type, and other types. Among them, tunnel car wash machines are fast and efficient, but they have high site requirements and usually require manual guidance, resulting in additional labor costs. Gantry reciprocating car wash machines have a relatively small footprint and are suitable for small and medium-sized car wash locations, but their gantry structure limits the spray angle and coverage of the sides and bottom of the vehicle. Currently, the gantry or frame-type car wash equipment commonly found on the market, due to the relatively fixed nozzle installation positions, makes it difficult to dynamically adapt the spray angle and distance to the vehicle body, easily creating cleaning blind spots and affecting the final cleaning effect.

[0004] In the field of contactless car wash technology, several cantilevered or robotic arm car wash devices have emerged. For example, Chinese patent CN220535614U discloses a 360° contactless cantilevered car wash machine, which uses a combination of a horizontal walking device and a rotating device to move and rotate the suspended arm along the length of the car body, achieving cleaning of all four sides of the vehicle. Another example is Chinese patent CN216636428U, which discloses a contactless automatic car wash machine with controllable rotation speed. It employs a gantry frame that reciprocates along a guide rail, and a rotatable nozzle mechanism is installed on the frame to achieve cleaning from different angles. Furthermore, Chinese patent CN216734207U discloses a car wash machine nozzle assembly capable of both vertical and horizontal oscillation, reducing cleaning dead zones.

[0005] However, the aforementioned existing technologies still have the following shortcomings:

[0006] First, the limitations of spray freedom and flexibility. Although existing cantilever car wash equipment can rotate the nozzles or swing in one direction, it has not yet achieved independent composite control of the nozzles' vertical up-and-down swing and horizontal left-and-right swing. Moreover, its nozzles are often fixed in different parts of the equipment, making it impossible to actively adjust the spray angle according to changes in the car body's curvature, resulting in poor adaptability to complex car body curvature.

[0007] Second, the automation level of mode switching is insufficient. Existing car wash equipment still requires step-by-step control or relies on external control systems when switching between different working modes such as pre-washing, foam spraying, and high-pressure washing. It lacks a compact design that integrates automatic water / foam switching function within a single nozzle, resulting in larger equipment size or more complex control processes.

[0008] Third, there is a potential risk of paint damage during the car wash process. Some existing automatic car wash equipment uses contact cleaning mechanisms such as roller brushes, which are highly efficient, but long-term use can easily cause minor scratches to the paint, making them less acceptable to owners of high-end models or dark-colored paint. While contactless equipment avoids physical contact, its spray path is often fixed or only involves simple rotation, resulting in insufficient cleaning coverage and targeting.

[0009] Fourth, the equipment has poor site adaptability. Existing gantry car wash machines require a large amount of ground space for installation, limiting their applicability to scenarios with limited space, such as garages and gas stations.

[0010] Fifth, the stability and positioning accuracy of the walking mechanism are insufficient. The walking mechanism of some track-type car wash equipment is relatively simple in design, and problems such as unstable walking and positioning deviation are prone to occur during long-term use, affecting the consistency of the cleaning effect.

[0011] In summary, the existing technology lacks an intelligent car wash equipment that integrates track walking, intelligent 360-degree rotating arm, multi-angle composite oscillation of omnidirectional nozzles, and automatic water / foam switching, and has a compact structure, flexible installation, and comprehensive cleaning coverage to meet the market's urgent demand for efficient, non-destructive, and all-round automatic car washing. Summary of the Invention

[0012] This invention provides a rotating car wash device based on automatic car washing, which aims to solve the technical problems of high labor costs, low efficiency, blind spots in cleaning, potential damage to car paint, and poor equipment installation flexibility in existing car washing methods.

[0013] The present invention solves the above-mentioned technical problems as follows: A rotatable car wash device based on automatic car washing includes a double-track rail, an intelligent rotating arm, an omnidirectional intelligent nozzle, and a body. The body is movably mounted on the double-track rail; a turntable is installed below the body; the upper end of the intelligent rotating arm is fixedly connected to the turntable; the omnidirectional intelligent nozzle is installed at the lower end of the intelligent rotating arm. A travel motor is installed inside the body to drive the body to reciprocate linearly along the double-track rail; a rotary motor is also installed inside the body to drive the turntable to rotate the intelligent rotating arm 360 degrees. The omnidirectional intelligent nozzle includes a high-pressure nozzle, an electric switching valve, an up-and-down swing motor, a reducer, and a left-and-right swing motor; wherein, the up-and-down swing motor and the reducer cooperate to control the high-pressure nozzle to swing up and down, the left-and-right swing motor controls the high-pressure nozzle to swing left and right, and the electric switching valve controls the high-pressure nozzle to switch between a water spray mode and a foam spray mode.

[0014] Furthermore, the dual-track system is equipped with fixed supports and is fixedly installed on the roof or wall via the fixed supports. Installing the dual-track system on the roof or wall via the fixed supports does not require occupying the ground space of the car wash area, making it particularly suitable for scenarios with limited space such as garages, gas stations, and underground parking lots. At the same time, it avoids the problem of ground tracks being easily affected by water accumulation and dust, improving the operational stability and service life of the equipment.

[0015] Furthermore, the machine body also includes tracks that mesh with the dual-track system and assist the machine body in running smoothly under the drive of the walking motor. The meshing transmission between the tracks and the dual-track system has a larger contact area and better grip compared to ordinary roller structures, which can effectively prevent slippage or swaying during walking, making the reciprocating linear motion of the machine body more stable and the positioning more accurate, thereby ensuring the consistency of the spray trajectory and improving the cleaning effect.

[0016] Furthermore, the omnidirectional intelligent nozzle is equipped with a high-pressure water pipe, which is connected to the intelligent rotating arm for conveying water or foam mixture. The high-pressure water pipe is reliably fixed inside the intelligent rotating arm or along its exterior, achieving a stable supply of water and foam mixture from the machine body to the omnidirectional intelligent nozzle. This avoids interference from external pipelines on the rotational movement of the rotating arm, ensuring uninterrupted liquid supply and preventing pipeline entanglement during continuous 360-degree rotation, thus improving the reliability and safety of the equipment.

[0017] The present invention also provides a method of using a rotatable car wash device based on any of the above technical solutions, comprising the following steps: S1, starting the device, controlling the walking motor to drive the machine body to move along the double track through the background program, while controlling the rotating motor to drive the intelligent rotating arm to rotate, and controlling the up-and-down swing motor and the left-and-right swing motor to drive the omnidirectional intelligent nozzle to swing.

[0018] S2, the first cleaning is performed, the electric switching valve is switched to water spray mode, and the high-pressure nozzle pre-sprays water to rinse the vehicle body;

[0019] S3, Perform the second cleaning cycle. The electric switching valve switches to foam spray mode, and the high-pressure nozzle sprays foam onto the vehicle body to dissolve stains.

[0020] S4, the third cleaning is performed. The electric switching valve switches to water spray mode again, and the high-pressure nozzles perform high-pressure rinsing on the vehicle body to remove foam and residual dirt, thus completing the vehicle cleaning.

[0021] Through the above steps, the car wash equipment can automatically complete the entire process of pre-washing, foam spraying, and high-pressure rinsing without human intervention. The combined motion of walking, rotating, and nozzle oscillation allows high-pressure water or foam to cover all external surfaces of the car body from multiple angles, achieving thorough cleaning. The electric switching valve is built into the nozzle, enabling quick and reliable mode switching and avoiding excessively long pipelines and response delays caused by external switching devices. The overall method is simple to operate, highly efficient, and involves no physical contact, completely eliminating the risk of scratching the car paint.

[0022] The beneficial effects of this invention are as follows: This invention provides a rotating car wash device based on automatic car washing, which has the following advantages:

[0023] 1. All-round cleaning without blind spots: By moving the machine along the track, rotating the intelligent arm 360 degrees, and swinging the omnidirectional intelligent nozzles up, down, left, and right, it achieves full coverage of the top, sides, front, back, and bottom edges of the car body, solving the problem of blind spots in traditional car wash equipment.

[0024] 2. Highly automated, with a built-in electric switching valve and background program, it can automatically switch between three modes: pre-wash, foam spray, and high-pressure rinsing. The entire car wash process requires no manual operation, which greatly reduces labor costs and shortens car wash time.

[0025] 3. Non-contact car wash protects the paint. It uses high-pressure water and foam to rinse the car, without using brushes or cloths or other contact cleaning parts. This avoids minor scratches to the paint caused by physical friction, and is especially suitable for high-end models and dark paint.

[0026] 4. Flexible installation and wide applicability: The dual-track system can be installed on the roof or wall using fixed brackets, without occupying the effective area of ​​the ground car wash bay. It can be flexibly deployed in space-constrained places such as underground garages, gas stations, and car wash and detailing shops.

[0027] 5. Stable movement and precise positioning: The meshing drive structure of the track and double rails provides stronger anti-slip capability and higher walking accuracy compared to ordinary rollers, ensuring the consistency of the spray trajectory for each car wash and improving the stability of the cleaning effect.

[0028] 6. The structure is compact and the cost is controllable. The rotary drive, nozzle swing drive and water / foam switching valve are centrally designed inside the machine body and nozzle. The overall structure is simple and the manufacturing cost is lower than that of multi-joint robotic arms or large gantry car wash machines, which facilitates large-scale promotion.

[0029] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of a rotating car wash device based on automatic car washing, provided in an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the operating structure of a rotatable car wash device based on automatic car washing, provided in an embodiment of the present invention.

[0033] Figure 3 A schematic diagram of the top structure of a rotatable car wash device based on automatic car washing provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of a smart nozzle of a rotatable car wash device based on an automatic car wash, according to an embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the internal structure of a rotatable car wash device based on automatic car washing, provided in an embodiment of the present invention.

[0036] Figure 6 A top view of a rotatable car wash device based on automatic car washing provided in an embodiment of the present invention;

[0037] Figure 7 This is an elevation view of a rotatable car wash device based on automatic car washing, provided as an embodiment of the present invention.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Double-track system; 2. Intelligent rotating arm; 3. Omnidirectional intelligent nozzle; 4. Machine body; 5. Turntable; 6. High-pressure nozzle; 7. Fixed bracket; 8. Track; 9. High-pressure water pipe; 10. Electric switching valve; 11. Up-down swing motor; 12. Reducer; 13. Left-right swing motor; 14. Travel motor; 15. Rotary motor. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-7 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0041] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Please see Figures 1 to 7 This invention provides a rotating car wash device based on automatic car washing and its usage method. This device is particularly suitable for contactless automatic car washing scenarios and can achieve all-round, multi-angle, and no-dead-angle cleaning of the vehicle's exterior surface.

[0044] The overall structure of the equipment is as follows Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, a rotating car wash device based on automatic car washing mainly includes a double-track rail 1, an intelligent rotating arm 2, an omnidirectional intelligent nozzle 3, and a body 4.

[0045] The dual-track 1 is used to provide a walking path and support for the entire equipment. As a preferred embodiment, the dual-track 1 is equipped with a fixed bracket 7 and is firmly fixed to the roof or wall of the car wash. This suspended or side-mounted installation method does not require occupying the ground space of the car wash area, and is particularly suitable for scenarios with limited space such as underground garages, gas stations, and family garages. At the same time, it can also effectively avoid the problem that the ground track is easily contaminated by water and mud, which affects the walking accuracy.

[0046] The body 4 is movably mounted on the double-track 1, specifically, as follows: Figure 5 As shown, the machine body 4 is equipped with a walking motor 14 and a track 8. The track 8 meshes with the track surface of the double rail 1. The walking motor 14 drives the track 8 to rotate, thereby driving the entire machine body 4 to make a smooth reciprocating linear motion along the double rail 1. Compared with the traditional roller structure, the meshing transmission structure of the track 8 and the double rail 1 has a larger contact area and stronger grip, which can effectively prevent slippage and swaying caused by the back pressure of high-pressure water or the wet track during the movement, ensuring that the machine body 4 moves smoothly and is accurately positioned, thereby ensuring the consistency of the spray trajectory and improving the cleaning effect.

[0047] Rotary and spraying actuators, such as Figure 2 and Figure 5 As shown, a rotatable turntable 5 is installed on the lower part of the body 4 (i.e., the side facing the vehicle). The upper end of the intelligent rotating arm 2 is fixedly connected to the turntable 5, while the lower end hangs down for mounting the omnidirectional intelligent nozzle 3. A rotary motor 15 is also installed inside the body 4. The output shaft of the rotary motor 15 is connected to the turntable 5 for transmission. During operation, the rotary motor 15 can drive the turntable 5 to rotate the intelligent rotating arm 2 continuously in 360 degrees or swing it back and forth as needed, so that the omnidirectional intelligent nozzle 3 can move in a circle around the vehicle body.

[0048] like Figure 4 As shown, the omnidirectional intelligent nozzle 3 is the core execution component of this invention. It integrates a high-pressure nozzle 6, an electric switching valve 10, an up-and-down swing motor 11, a reducer 12, and a left-and-right swing motor 13. The high-pressure nozzle 6 is connected to the internal or external pipeline of the intelligent rotating arm 2 through a high-pressure water pipe 9, and then connected to the water supply / foam supply system. The high-pressure water pipe 9 preferably adopts a rotatable joint or a flexible pipe with sufficient length to ensure that the liquid supply is uninterrupted and the pipe does not tangle when the intelligent rotating arm 2 rotates 360 degrees.

[0049] The up-and-down swing motor 11 works in conjunction with the reducer 12 to drive the high-pressure nozzle 6 to swing up and down in the vertical plane. The reducer 12 is used to reduce the speed and increase the torque, so that the up-and-down swinging motion is smooth and controllable. The left-and-right swing motor 13 drives the high-pressure nozzle 6 to swing left and right in the horizontal direction directly or through the transmission mechanism. With the above settings, the high-pressure nozzle 6 can realize independent up-and-down swinging, left-and-right swinging, or a combination of both swinging motions, which greatly enriches the spraying angle.

[0050] The electric switching valve 10 is a three-way or similar switching valve. Its inlet is connected to the clean water pipeline and the foam mixture pipeline respectively, and its outlet is connected to the high-pressure nozzle 6. Through background program control, the electric switching valve 10 can quickly and reliably switch between "water spray mode" and "foam spray mode" without the need for external auxiliary equipment, realizing the automatic and seamless connection of processes such as pre-rinsing, foam spraying, and high-pressure rinsing.

[0051] In addition to the working method and preferred process, this invention also provides a method for using the above-mentioned equipment. The following is a detailed description of the specific cleaning process. The entire cleaning process is automatically controlled by a background program preset in the equipment controller (such as a PLC or a microcontroller), without the need for manual intervention.

[0052] Step S1: Equipment Start-up and Composite Motion Initialization. After the vehicle is parked in the designated cleaning area below the double track 1, the car wash equipment is started. The background program issues an instruction to start the walking motor 14, which drives the machine body 4 to move from the starting end to the end along the double track 1. At the same time, the rotary motor 15 is started, which drives the intelligent rotating arm 2 to rotate 360 ​​degrees at a set speed. In addition, the up-and-down swing motor 11 and the left-and-right swing motor 13 are started simultaneously, which drive the omnidirectional intelligent nozzle 3 to swing up and down and left and right in a composite motion according to a preset trajectory (such as a sine wave, spiral, or area scanning trajectory).

[0053] Through this three-dimensional composite motion of "straight-line walking + 360-degree rotation + multi-angle swinging", the high-pressure nozzle 6 can spray water or foam at varying distances and angles onto all external surfaces of the vehicle body, such as the top, sides, front and rear bumpers, wheel arches, and chassis edges, ensuring no blind spots in cleaning.

[0054] Step S2: First cleaning pre-rinse. While the compound motion is in progress, the background program controls the electric conversion valve 10 to switch to water spray mode. The high-pressure nozzle 6 performs a comprehensive and high-pressure pre-rinse of the car body. The purpose of this step is to wash away the larger particles of mud, sand, dust and other loose dirt attached to the car body surface, so as to avoid scratching the paint surface during the subsequent foam spraying process, and to soften the dirt and pre-wet it.

[0055] Step S3: Second cleaning foam spraying. When the machine body 4 moves to the end of the track or completes one pre-rinse stroke, the equipment begins the second cleaning. In this step, the background program issues another instruction to control the electric switching valve 10 to switch from water spray mode to foam spray mode. The high-pressure nozzle 6 then evenly sprays the proportionally adjusted active foam onto the vehicle body. The foam can adhere to the surface of the vehicle body for a long time, effectively dissolving and emulsifying stubborn stains such as oil, insect glue, and bird droppings. During this process, the above-mentioned walking, rotating, and swinging compound motion continues to ensure that the foam covers every corner.

[0056] Step S4: Third high-pressure rinsing. After the foam has acted for a preset time (e.g., 30-60 seconds), the equipment performs the third rinse. The background program controls the electric switching valve 10 to switch back to the water spray mode. The high-pressure nozzle 6 uses higher water pressure to powerfully rinse the car body, thoroughly removing residual foam, dissolved dirt, and other impurities from the car body surface. At this point, the entire automatic car wash process is completed, and the equipment can automatically return to the starting position or enter standby mode, completing a non-contact, all-around cleaning of a car.

[0057] Based on the above basic implementation method, the present invention can be further optimized as follows:

[0058] The preferred omnidirectional intelligent nozzle 3 can integrate a distance sensor inside. This sensor can detect the distance between the nozzle and the body sheet metal surface in real time. The background program can dynamically adjust the swing amplitude and speed of the up-and-down swing motor 11 and the left-and-right swing motor 13 based on this distance signal, or adjust the spray pressure of the high-pressure nozzle 6. For example, when approaching areas with drastic changes in the body surface (such as rearview mirrors and door handles), the swing amplitude can be appropriately reduced or the water pressure can be lowered to achieve a more refined and safer cleaning effect.

[0059] Multiple position sensors can be installed on the preferred dual-track 1 to accurately detect the real-time position of the machine body 4. The background program combines the position information and the preset vehicle model to realize a segmented and differentiated cleaning strategy. For example, when cleaning the front air intake grille area, the dwell time can be increased or multi-angle circling rinsing can be used; when cleaning the roof, the angle of the up and down swing motor can be increased so that the water column impacts the roof more vertically.

[0060] In summary, the specific embodiments provided by this invention organically combine a machine body that can travel linearly along a double-track system, an intelligent rotating arm that can rotate 360 ​​degrees, and an omnidirectional intelligent nozzle that can independently control its up-down, left-right, and swaying motion and has a built-in water / foam switching valve. This achieves all-round, no-dead-angle, non-contact, and highly automated cleaning of vehicles. The equipment has a compact structure, flexible installation, stable operation, good cleaning effect, and does not damage the paint. It effectively overcomes many shortcomings of the prior art and has high practical value and broad market promotion prospects.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Content not described in detail in this specification is prior art known to those skilled in the art.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A rotating car wash device based on automatic car washing, comprising a double-track rail (1), an intelligent rotating arm (2), an omnidirectional intelligent nozzle (3), and a body (4), characterized in that: The machine body (4) is movably mounted on the double track (1), a turntable (5) is installed below the machine body (4), the upper end of the intelligent rotating arm (2) is fixedly connected to the turntable (5), and the omnidirectional intelligent nozzle (3) is installed at the lower end of the intelligent rotating arm (2). The machine body (4) is equipped with a walking motor (14) for driving the machine body (4) to reciprocate linearly along the double track (1); The machine body (4) is equipped with a rotary motor (15) to drive the turntable (5) to rotate the intelligent rotating arm (2) 360 degrees. The omnidirectional intelligent nozzle (3) includes a high-pressure nozzle (6), an electric switching valve (10), an up-and-down swing motor (11), a reducer (12), and a left-and-right swing motor (13). The up-and-down swing motor (11) and the reducer (12) work together to control the high-pressure nozzle (6) to swing up and down, the left-and-right swing motor (13) controls the high-pressure nozzle (6) to swing left and right, and the electric switching valve (10) controls the high-pressure nozzle (6) to switch between water spraying mode and foam spraying mode.

2. The rotatable car wash equipment based on automatic car washing according to claim 1, characterized in that, The double track (1) is provided with a fixed bracket (7) and is fixedly installed on the roof or wall by the fixed bracket (7).

3. The rotatable car wash equipment based on automatic car washing according to claim 1, characterized in that, The body (4) also includes tracks (8), which mesh with the double track (1) and assist the body (4) to run smoothly under the drive of the walking motor (14).

4. The rotatable car wash equipment based on automatic car washing according to claim 1, characterized in that, The omnidirectional intelligent nozzle (3) is equipped with a high-pressure water pipe (9) and is connected to the intelligent rotating arm through the high-pressure water pipe (9) for conveying water or foam mixture.

5. A method of using a rotating car wash device based on automatic car washing, employing the device according to any one of claims 1 to 4, characterized in that, The process includes the following steps: S1, start the device, control the walking motor (14) through the background program to drive the machine body (4) to move along the double track (1), control the rotating motor (15) to drive the intelligent rotating arm (2) to rotate, and control the up-and-down swing motor (11) and the left-and-right swing motor (13) to drive the omnidirectional intelligent nozzle (3) to swing. S2, the first cleaning is performed, the electric switching valve (10) switches to the water spray mode, and the high-pressure nozzle (6) pre-sprays water to wash the body; S3, perform the second cleaning, the electric switching valve (10) switches to foam spray mode, and the high-pressure nozzle (6) sprays foam onto the vehicle body to dissolve stains; S4, the third cleaning is performed. The electric switching valve (10) switches to the water spray mode again, and the high-pressure nozzle (6) performs high-pressure rinsing on the vehicle body to remove foam and residual dirt, thus completing the vehicle cleaning.

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