A cleaning nozzle for a mobile vehicle washing apparatus

Abstract

The present application relates to a kind of cleaning spray head of mobile car washing equipment, including cleaning spray head body, the cleaning spray head body is connected with clean water tank by high-pressure pump, so that the clean water in the clean water tank is washed to vehicle after entering the cleaning spray head body with high pressure;The cleaning spray head body is communicated with cleaning liquid storage tank, to spray cleaning liquid to vehicle surface;Brush is provided on the cleaning spray head body, to brush wash vehicle surface;The cleaning spray head body is also communicated with sewage tank, to pump the sewage after cleaning from cleaning spray head body into the sewage tank.The present application spray head set high-pressure clean water washing, cleaning liquid cleaning, brush washing, waste water negative pressure suction recovery function in one, both ensure the cleaning quality to vehicle, also avoid waste water to flow to operation site, cause site pollution, both fast and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of car wash equipment technology, and more particularly to a cleaning nozzle for mobile car wash equipment. Background Technology

[0002] Door-to-door car wash service involves moving car wash equipment to the vehicle's parking space to complete the cleaning operation. Currently, door-to-door car wash equipment on the market includes push-type car wash machines, such as the portable door-to-door car wash equipment disclosed in Chinese patent CN208360130U, which includes a water gun, an accessory box, and a water tank connected to the accessory box. The water tank has a first water outlet connecting the accessory box and the water tank. The accessory box includes a hose reel and a high-pressure water pump. A hose is installed on the hose reel, and one end of the hose is connected to the water outlet of the water pump. The water gun includes a handle, a liquid tank, a water gun rod, and a nozzle. The handle has a water passage and a wiring passage. The water passage contains a water and electricity control switch. The wire of the high-pressure water pump passes through the wiring passage and connects to the water and electricity control switch. One end of the water gun rod and the liquid tank are connected to the water outlet of the water passage, and the other end of the water gun rod is connected to the nozzle through a rotating positioning component. This simple and portable car wash equipment only has a high-pressure water spray function, lacks a wastewater recycling structure, and requires an external water and power source.

[0003] Another type of on-site car wash equipment on the market is high-pressure steam car wash equipment, such as the steam micro-water car wash equipment disclosed in Chinese patent CN221757488U for on-site car wash services. This includes a toolbox on top of the steam micro-water car wash equipment, a protective component at the bottom, and a cleaning component installed at one end of the equipment. The protective component includes a fixing frame, a locking component, a fixing rail, and a fixing block. Three sets of fixing frames are provided, and the fixing rails are respectively located inside one end of each of the three sets of fixing frames. In the aforementioned car wash equipment, the protective component is added. During car washing, the fixing frame is placed under the vehicle being washed, and the fixing frame and filter plate are used to collect the wastewater, preventing it from dripping onto the ground and polluting the environment. However, the aforementioned prior art still lacks a structure for wastewater recycling and reuse, and the protective component is difficult to match well with the size and shape of the vehicle, resulting in unsatisfactory wastewater collection. Furthermore, the protective component is bulky and inconvenient to transport. Summary of the Invention

[0004] The present invention aims to provide a cleaning nozzle for mobile car wash equipment to overcome the shortcomings of the prior art. The technical problem to be solved by the present invention is achieved through the following technical solution.

[0005] A cleaning nozzle for a mobile car wash includes a nozzle body connected to a clean water tank via a high-pressure pump, allowing clean water from the tank to be pumped into the nozzle body for high-pressure washing of the vehicle. The nozzle body is also connected to a cleaning fluid storage tank for spraying cleaning fluid onto the vehicle surface. A brush is mounted on the nozzle body to scrub the vehicle surface. The nozzle body is further connected to a wastewater tank to draw wastewater from the nozzle body into the tank. The nozzle body also includes a cover with a recessed depth matching the height of the brush, and a flexible sealing strip along the edge of the cover. A control panel is located on the back of the nozzle body for controlling its operating status.

[0006] Preferably, the cleaning nozzle body is provided with a first high-pressure clean water outlet, a brush, a second high-pressure clean water outlet, and a cleaning liquid outlet. The first high-pressure clean water outlet and the second high-pressure clean water outlet are connected to the clean water tank via a high-pressure pump. The brush can be automatically rotated by electronic control. The cleaning liquid outlet is connected to a cleaning liquid storage tank. The cleaning nozzle body is provided with a negative pressure suction channel, which is connected to the wastewater tank via a negative pressure pump. The cover is provided outside the first high-pressure clean water outlet, the brush, the second high-pressure clean water outlet, the cleaning liquid outlet, and the negative pressure suction channel.

[0007] Preferably, the cover includes a circular cover portion covering the outside of the brush and having an opening at the lower end, and a first ear portion and a second ear portion disposed on both sides of the circular cover portion. The first high-pressure clean water outlet is disposed inside the first ear portion, the second high-pressure clean water outlet is disposed inside the second ear portion, the cleaning liquid outlet is disposed inside the circular cover portion, and the negative pressure suction channel is disposed at the confluence of the lower ends of the first ear portion and the second ear portion and the lower opening of the circular cover portion.

[0008] Preferably, the cover has a square structure, including an upper cover covering the brush and a lower cover below the upper cover. The first high-pressure clean water outlet is located inside the upper cover above the brush, the cleaning liquid outlet is located inside the upper cover below the first high-pressure clean water outlet, and the second high-pressure clean water outlet is located inside the lower cover. The negative pressure suction channel is located below the brush and is used to suction wastewater inside the cover into a sewage tank.

[0009] Preferably, the negative pressure suction channel includes a first negative pressure suction channel and a second negative pressure suction channel. A partition plate is provided between the upper cover and the lower cover. The air intake of the first negative pressure suction channel is located at the outer end of the partition plate, and the air intake of the second negative pressure suction channel is located at the outer end of the lower bottom plate of the lower cover.

[0010] Preferably, the length of the lower side plate of the lower cover exceeds the length of the side plate of the lower cover, so that the overall coverage length of the second negative pressure suction channel is greater than the overall coverage length of the first negative pressure suction channel.

[0011] This invention provides a cleaning nozzle for mobile car wash equipment. The nozzle integrates high-pressure water rinsing, cleaning liquid cleaning, brush washing, and wastewater negative pressure suction and recovery functions. The wastewater generated during cleaning is scraped and collected as the cleaning nozzle moves and is sucked back to the wastewater tank through the negative pressure suction channel to the maximum extent. This ensures the cleaning quality of the vehicle and avoids wastewater flowing to the work site and causing site pollution. It is both fast and environmentally friendly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of another embodiment of the present invention; Figure 3 This is a schematic diagram of the mobile car wash equipment in this invention; Figure 4 This is a schematic diagram of the integrated housing structure in this invention; Figure 5 This is a structural schematic diagram of the integrated housing from another angle in this invention; Figure 6 This is a structural schematic diagram of the integrated housing from another angle in this invention; The reference numerals in the attached drawings are as follows: 1. Cleaning nozzle body; 11. First high-pressure clean water outlet; 12. Brush; 13. Second high-pressure clean water outlet; 14. Cleaning fluid outlet; 15. Cover; 16. Negative pressure suction channel; 161. First negative pressure suction channel; 162. Second negative pressure suction channel; 17. Recovery pipe; 18. Cleaning fluid storage tank; 2. Integrated housing; 21. First clean water tank; 22. Second clean water tank; 23. Sewage recovery tank; 24. Sewage collection tank; 25. Water tank; 251. Sewage drain pipe; 26. Exhaust pipe; 27. Negative pressure pump exhaust pipe; 3. Frame; 4. Control box. Detailed Implementation

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] Example 1: An improvement of a cleaning nozzle for a mobile car wash equipment is that it includes a cleaning nozzle body 1, which is connected to a clean water tank via a high-pressure pump, allowing clean water from the tank to be pumped into the cleaning nozzle body 1 for high-pressure washing of the vehicle; the cleaning nozzle body 1 is connected to a cleaning fluid storage tank 18 for spraying cleaning fluid onto the vehicle surface; a brush 12 is provided on the cleaning nozzle body 1 for brushing the vehicle surface; the cleaning nozzle body 1 is also connected to a wastewater tank to draw wastewater from the cleaning nozzle body 1 into the wastewater tank; the cleaning nozzle body 1 also includes a cover 15, the recessed depth of which matches the height of the brush, and a flexible sealing strip is provided on the edge of the cover 15; a control panel is provided on the back of the cleaning nozzle body 1 for controlling the working status of the cleaning nozzle body 1.

[0015] Furthermore, the cleaning nozzle body 1 is provided with a first high-pressure clean water outlet 11, a brush 12, a second high-pressure clean water outlet 13, and a cleaning liquid outlet 14. The first high-pressure clean water outlet 11 and the second high-pressure clean water outlet are connected to the clean water tank through a high-pressure pump. The brush 12 can rotate automatically by electronic control. The cleaning liquid outlet 14 is connected to the cleaning liquid storage tank 18. The cleaning nozzle body 1 is provided with a negative pressure suction channel 16, which is connected to the wastewater tank through a negative pressure pump. The cover 15 covers the outside of the first high-pressure clean water outlet 11, the brush 14, the second high-pressure clean water outlet 13, the cleaning liquid outlet 14, and the negative pressure suction channel 16.

[0016] In this embodiment, the mobile car wash equipment includes a frame 3, an integrated housing 2, and a cleaning nozzle body 1. The integrated housing 2 is fixedly installed above the frame 3. The integrated housing 2 contains a clean water tank and a wastewater tank. The clean water tank is connected to the cleaning nozzle body 1 via a high-pressure pump, allowing clean water from the clean water tank to flow into the cleaning nozzle body 1 for high-pressure washing of the vehicle. The cleaning nozzle body 1 is connected to a cleaning fluid storage tank 18 to spray cleaning fluid onto the vehicle surface. The head body 1 is equipped with a brush 12 for scrubbing the vehicle surface; the cleaning nozzle body 1 is connected to the wastewater tank to draw the wastewater after cleaning from the cleaning nozzle body 1 into the wastewater tank; a water tank 25 is provided on the rear side of the integrated housing 2, and a faucet is provided on the water tank 25. The faucet is connected to the clean water tank, and the water tank 25 is connected to the wastewater tank so that the wastewater in the water tank 25 is recycled into the wastewater tank; a power supply module is provided on the top of the frame 3.

[0017] Specifically, the first high-pressure clean water outlet 11 and the second high-pressure clean water outlet 13 are used to spray high-pressure clean water, the cleaning fluid outlet 14 is used to spray cleaning fluid onto the vehicle body, the brush 12 is used to automatically scrub the vehicle surface, and the negative pressure suction channel 16 is used to suck the wastewater generated during vehicle cleaning into the wastewater recovery tank 23. During operation, the first high-pressure clean water outlet 11 and the second high-pressure clean water outlet 13 spray clean water onto the vehicle surface to rinse the vehicle body. The cleaning fluid sprayed onto the vehicle body mixes with the clean water on the vehicle surface. The brush 12 rotates to scrub and clean the vehicle surface. At the same time, the wastewater after cleaning is sucked into the wastewater recovery tank 23 through the negative pressure suction channel 16. This ensures the cleaning quality of the vehicle while preventing wastewater from flowing into the work area and causing site pollution, making it both fast and environmentally friendly.

[0018] In this embodiment, the cover 15 and the flexible sealing strip enclose the working space of the cleaning nozzle body 1 into a relatively sealed space. During operation, the edge of the cover 15 of the cleaning nozzle body 1 is brought into contact with the vehicle surface for brushing and cleaning. This allows the wastewater generated during cleaning to be scraped and collected as the cleaning nozzle body 1 moves, and is then sucked back into the wastewater tank through the negative pressure suction channel 16 to the maximum extent possible, thus preventing the wastewater from flowing erratically. The flexible sealing strip prevents hard contact between the cover 15 and the vehicle surface from causing damage. Furthermore, the flexible sealing strip allows the cover 15 to better conform to the irregular shape of the vehicle body, providing a better seal. In addition, the flexible sealing strip also acts like a windshield wiper, scraping away residual water stains on the vehicle body as the spray head 1 moves, saving subsequent operation time and improving cleaning efficiency.

[0019] In this embodiment, refer to Figures 1 to 6 As shown, the mobile car wash equipment integrates a clean water tank, a wastewater tank, a cleaning nozzle body 1, a water trough 25, and a power supply module. The clean water tank stores clean water, while the wastewater tank collects wastewater after vehicle washing. The cleaning nozzle body 1 provides high-pressure rinsing and sprays cleaning fluid onto the vehicle, and uses brushes 12 to scrub the vehicle, resulting in a more thorough and clean cleaning. Furthermore, the cleaning nozzle body 1 is connected to the wastewater tank to collect the wastewater after washing. The water trough 25 is used for handwashing and rinsing cloths, and the wastewater from this process can also be collected in the wastewater tank. The power supply module powers the high-pressure pump, negative pressure pump, control panel, and display screen within the equipment.

[0020] Furthermore, the power supply module is a lithium battery power supply module, which has higher energy and longer lifespan.

[0021] Furthermore, casters are provided at the four corners of the bottom surface of the frame 3, and a vibration damping device is provided between the upper surface of the frame 3 and the integrated housing 2.

[0022] Furthermore, the casters are electric casters.

[0023] In this embodiment, the electric casters make moving the car wash equipment easier and more convenient.

[0024] Furthermore, a toolbox is provided on one bottom side of the integrated housing 2.

[0025] In this embodiment, the toolbox is used to store pipelines, cleaning nozzles, and other tools and accessories; there is no separate box for these items.

[0026] Furthermore, a control box 4 is provided on the top of the integrated housing 2, and a display screen is provided on the control box 4 to display the power supply module's power, voltage, and the working status of the water circuit.

[0027] Example 2: Based on Embodiment 1, the clean water tank includes a first clean water tank 21 and a second clean water tank 22. The first clean water tank 21 and the second clean water tank 22 are disposed on both sides of the integrated tank body 2 and are connected to each other for storing clean water.

[0028] Furthermore, the bottom of the first clean water tank 21 and the second clean water tank 22 are provided with connecting pipes that allow them to communicate with each other.

[0029] In this embodiment, both the first clean water tank 21 and the second clean water tank 22 are used to store clean water, making full use of the space of the integrated tank and increasing the amount of clean water stored.

[0030] Furthermore, the wastewater tank includes a wastewater recovery tank 23 and a wastewater collection tank 24. The wastewater recovery tank 23 is connected to the cleaning nozzle body 1 and the water tank 25 respectively, and is used to recover wastewater. The wastewater collection tank 24 is connected to the bottom of the wastewater recovery tank 23.

[0031] Furthermore, the second clean water tank 22 is provided with a drain pipe 251 that connects the water tank 25 to the sewage recycling tank 23.

[0032] Furthermore, the sewage collection tank 24 and the sewage recovery tank 23 are connected by a connecting pipe, and a one-way valve is installed in the connecting pipe to allow water to flow from the sewage recovery tank 23 to the sewage collection tank 24 and to be cut off in the reverse direction.

[0033] In this embodiment, the one-way valve ensures a negative pressure environment within the wastewater recovery tank 23, preventing wastewater from flowing back into the wastewater recovery tank 23 under the influence of the negative pressure environment.

[0034] Furthermore, the wastewater from the cleaning nozzle body 1 and the water tank 25 is returned to the upper part of the wastewater recovery tank 23.

[0035] Furthermore, a negative pressure pump is installed on the integrated housing 2. The air intake of the negative pressure pump is connected to the upper part of the sewage recovery tank 23, and the air outlet of the negative pressure pump is connected to the outside of the integrated housing.

[0036] Furthermore, the air outlet of the negative pressure pump is connected to the upper part of the sewage collection tank 24, and an exhaust pipe 26 is provided inside the clean water tank. The upper end of the exhaust pipe 26 is connected to the upper part of the sewage collection tank 24, and the lower end is placed outside the bottom surface of the clean water tank and connected to the outside atmosphere.

[0037] In this embodiment, refer to Figures 4 to 6 As shown, the suction port of the negative pressure pump is connected to the sewage recovery tank 23, and the exhaust port is connected to the upper part of the sewage collection tank 24. When working, the negative pressure pump continuously draws in, so that the sewage recovery tank 23 is in a negative pressure state. Therefore, the wastewater at the cleaning nozzle body 1 is continuously drawn into the sewage recovery tank 23. The exhaust port of the negative pressure pump exhausts the air to the upper part of the sewage collection tank 24, and then exhausts it to the outside of the integrated box 2 through the exhaust pipe 26. The reason for dividing the wastewater tank into a wastewater recovery tank 23 and a wastewater collection tank 24 is that the wastewater tank is under negative pressure due to the suction effect of the negative pressure pump. If the wastewater tank is too large, the power required by the negative pressure pump will be too large, and the size and weight will also increase accordingly. Therefore, the wastewater tank is divided into a smaller wastewater recovery tank 23 and a larger wastewater collection tank 24. The air intake of the negative pressure pump is connected to the smaller wastewater recovery tank 23, so that a smaller, smaller, and lighter negative pressure pump can be selected, thereby reducing the size and weight of the entire car wash equipment and saving energy consumption. In addition, the wastewater is drawn into the wastewater tank for recovery by the negative pressure pump from the cleaning nozzle body 1. The cleaning nozzle body 1 can spray cleaning liquid and can also perform brush cleaning function. The recovered wastewater contains mud, sand, cleaning foam and other substances. Therefore, more mud and sand settle into the wastewater recovery tank 23, which can reduce the cleaning burden during equipment maintenance and cleaning.

[0038] Furthermore, the exhaust pipe 26 is installed inside the second clean water tank 22. The upper end of the exhaust pipe 26 is connected to the upper part of the sewage collection tank 24, and the lower end is placed outside the bottom surface of the second clean water tank 22 and connected to the outside atmosphere.

[0039] Furthermore, the volume of the sewage collection tank 24 is larger than the volume of the sewage recycling tank 23.

[0040] Example 3: Based on Example 2, the wastewater recycling tank 23 is a cylindrical barrel.

[0041] Furthermore, the sewage collection tank 24 is a plurality of cylindrical containers identical to the sewage recycling tank 23, and adjacent sewage collection tanks 24 are interconnected.

[0042] In this embodiment, the wastewater recovery tank 23 and the wastewater collection tank 24 are made of cylindrical barrels, which facilitates production and selection. To increase the wastewater storage volume, the wastewater collection tank 24 uses multiple cylindrical barrels identical to those in the wastewater recovery tank 23, which facilitates mass production of the wastewater tanks and reduces production costs. In addition, the wastewater recovery tank 23 is under negative pressure during operation. Under negative pressure, square barrels are prone to deformation, while cylindrical barrels can better avoid deformation.

[0043] Example 4: Based on any of the foregoing embodiments, the cover 15 includes a circular cover portion covering the outside of the brush 12 and having an opening at the lower end, and a first ear portion and a second ear portion disposed on both sides of the circular cover portion. The first high-pressure clean water outlet 11 is disposed inside the first ear portion, the second high-pressure clean water outlet 13 is disposed inside the second ear portion, the cleaning liquid outlet 14 is disposed inside the circular cover portion, and the negative pressure suction channel 16 is disposed at the confluence of the lower ends of the first ear portion and the second ear portion and the lower opening of the circular cover portion.

[0044] In this embodiment, refer to Figure 1 As shown, the first high-pressure clean water outlet 11, the cleaning fluid outlet 14, and the second high-pressure clean water outlet 13 are arranged horizontally in sequence. During operation, as the cleaning nozzle body 1 moves along the surface of the vehicle body, the first high-pressure clean water outlet 11 sprays clean water to wet the vehicle body, the cleaning fluid outlet 14 sprays cleaning fluid, and the brush 12 scrubs the vehicle body. The second high-pressure clean water outlet sprays clean water to rinse the scrubbed vehicle body a second time. The negative pressure suction channel 16 is located at the bottom, and the water during the cleaning process flows downward and is collected at the lower end through the cover 15, thereby maximizing the suction and recovery through the negative pressure suction channel 16. In this embodiment, the cleaning nozzle body 1 has an ingenious structural design, making the cleaning operation faster and more efficient.

[0045] Example 5: Based on any of Embodiments 1-3, the cover 15 is generally square in structure, including an upper cover covering the brush 12 and a lower cover below the upper cover. The first high-pressure clean water outlet 11 is located inside the upper cover above the brush 12, and the cleaning liquid outlet 14 is located inside the upper cover below the first high-pressure clean water outlet 11. The negative pressure suction channel 16 includes a first negative pressure suction channel 161 and a second negative pressure suction channel 162. A partition plate is provided between the upper cover and the lower cover. The air intake of the first negative pressure suction channel 161 is located at the outer end of the partition plate, and the air intake of the second negative pressure suction channel 162 is located at the outer end of the lower bottom plate of the lower cover. The second high-pressure clean water outlet 13 is located inside the lower cover.

[0046] In this embodiment, refer to Figure 2 As shown, the cover 15 adopts a square structure, which better conforms to the curvature of the vehicle body and is easier to use. The first high-pressure clean water outlet 11, the cleaning fluid outlet 14, and the second high-pressure clean water outlet 13 are arranged vertically, which better conforms to the natural flow direction of water. During operation, the first high-pressure clean water outlet 11 sprays high-pressure clean water onto the vehicle body to wet it, the cleaning fluid outlet 14 sprays cleaning fluid, and the brush 12 mixes the cleaning fluid and clean water to scrub the vehicle body. The first negative pressure suction channel 161 sucks the mixture of mud, sand, cleaning fluid foam, and wastewater after scrubbing into the wastewater tank. At the same time, the second high-pressure clean water outlet 13 sprays clean water onto the vehicle body for secondary cleaning, and the second negative pressure suction channel 162 sucks the wastewater after secondary cleaning into the wastewater tank. Due to the setting of the first negative pressure suction channel 161, most of the wastewater containing more stains and impurities can be recycled to the wastewater tank first, so the wastewater recycled by the second negative pressure suction channel 162 has a higher cleanliness. This design allows the vehicle body to be cleaned twice in one wash, meaning that the first wash can remove mud and the second wash can remove residual stains. Combined with the scraping action of the cover 15, it can greatly improve the efficiency and quality of vehicle cleaning.

[0047] Furthermore, the length of the lower side plate of the lower cover exceeds the length of the side plate of the lower cover, so that the overall coverage length of the second negative pressure suction channel 162 is greater than the overall coverage length of the first negative pressure suction channel 161.

[0048] In this embodiment, the second negative pressure suction channel 161 is longer than the first negative pressure suction channel 161, which can recycle the small amount of sewage flowing out from above, making the sewage recycling more effective and thorough.

[0049] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0052] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0053] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0054] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cleaning nozzle for a mobile car wash device, characterized in that: The system includes a cleaning nozzle body (1), which is connected to a clean water tank via a high-pressure pump so that clean water from the tank is introduced into the cleaning nozzle body (1) to perform high-pressure washing on the vehicle; the cleaning nozzle body (1) is connected to a cleaning fluid storage tank (18) to spray cleaning fluid onto the vehicle surface; a brush (12) is provided on the cleaning nozzle body (1) to scrub the vehicle surface; the cleaning nozzle body (1) is also connected to a wastewater tank to draw the wastewater after cleaning from the cleaning nozzle body (1) into the wastewater tank; the cleaning nozzle body (1) also includes a cover (15), the recessed depth of which matches the height of the brush, and a flexible sealing strip is provided on the edge of the cover (15); a control panel is provided on the back of the cleaning nozzle body (1) to control the working status of the cleaning nozzle body (1).

2. The cleaning nozzle for a mobile car wash equipment according to claim 1, characterized in that: The cleaning nozzle body (1) is provided with a first high-pressure clean water outlet (11), a brush (12), a second high-pressure clean water outlet (13), and a cleaning liquid outlet (14). The first high-pressure clean water outlet (11) and the second high-pressure clean water outlet are connected to the clean water tank through a high-pressure pump. The brush (12) can rotate automatically by electrical control. The cleaning liquid outlet (14) is connected to the cleaning liquid storage tank (18). The cleaning nozzle body (1) is provided with a negative pressure suction channel (16). The negative pressure suction channel (16) is connected to the sewage tank through a negative pressure pump. The cover (15) is placed over the first high-pressure clean water outlet (11), the brush (12), the second high-pressure clean water outlet (13), the cleaning liquid outlet (14), and the negative pressure suction channel (16).

3. The cleaning nozzle for a mobile car wash equipment according to claim 2, characterized in that: The cover (15) includes a circular cover portion covering the outside of the brush (12) and having an opening at the lower end, and a first ear portion and a second ear portion disposed on both sides of the circular cover portion. The first high-pressure clean water outlet (11) is disposed inside the first ear portion, the second high-pressure clean water outlet (13) is disposed inside the second ear portion, the cleaning liquid outlet (14) is disposed inside the circular cover portion, and the negative pressure suction channel (16) is disposed at the confluence of the lower ends of the first ear portion and the second ear portion and the lower opening of the circular cover portion.

4. A cleaning nozzle for a mobile car wash equipment according to claim 2, characterized in that: The cover (15) is generally square in shape, including an upper cover covering the outside of the brush (12) and a lower cover below the upper cover. The first high-pressure clean water outlet (11) is located inside the upper cover above the brush (12), the cleaning liquid outlet (14) is located inside the upper cover below the first high-pressure clean water outlet (11), and the second high-pressure clean water outlet (13) is located inside the lower cover. The negative pressure suction channel (16) is located below the brush (12) and is used to draw the wastewater inside the cover (15) into the sewage tank.

5. A cleaning nozzle for a mobile car wash equipment according to claim 4, characterized in that: The negative pressure suction channel (16) includes a first negative pressure suction channel (161) and a second negative pressure suction channel (162). A partition plate is provided between the upper cover and the lower cover. The air inlet of the first negative pressure suction channel (161) is located at the outer end of the partition plate, and the air inlet of the second negative pressure suction channel (162) is located at the outer end of the lower bottom plate of the lower cover.

6. A cleaning nozzle for a mobile car wash equipment according to claim 5, characterized in that: The length of the lower side plate of the lower cover exceeds the length of the side plate of the lower cover, so that the overall coverage length of the second negative pressure suction channel (162) is greater than the overall coverage length of the first negative pressure suction channel (161).

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