Car washer capable of automatically cleaning interior of carriage

By designing an automated car wash machine and utilizing a combination of rotating nozzles and multi-way solenoid valves, the problems of low efficiency, poor safety, and narrow applicability of traditional car wash machines are solved, achieving efficient, safe, and uniform cleaning of the car interior and adapting to a variety of car models.

CN224145911UActive Publication Date: 2026-04-21SHAOXING ZHONGLI STEEL BUILDING ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOXING ZHONGLI STEEL BUILDING ENG CO LTD
Filing Date
2025-04-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional car wash machines cannot efficiently and safely clean the interior of vehicles, resulting in low efficiency, high labor intensity, high safety hazards, and uneven cleaning quality. Furthermore, they are difficult to adapt to the complex structures of different vehicle models.

Method used

An automatic car wash machine for cleaning the interior of a vehicle compartment was designed. It uses components such as nozzles, water pumps, telescopic arms, lifting platforms, proximity sensors, and controllers. It is remotely controlled through a wireless or wired communication module. Combined with rotating nozzles and multi-way solenoid valves, it can achieve mixed spraying of high-pressure water and cleaning media, adapting to different vehicle compartment structures.

Benefits of technology

It significantly improves cleaning efficiency and quality, reduces the labor intensity and safety risks for operators, expands the scope of equipment application, enables targeted cleaning, and enhances customer experience and equipment maintenance convenience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145911U_ABST
Patent Text Reader

Abstract

The utility model discloses a car washer capable of automatically cleaning the interior of a carriage, which comprises a nozzle and a water pump, the nozzle is connected with the water pump through a pipeline, the nozzle is connected with an automatic cleaning device, the automatic cleaning device comprises a telescopic arm and a lifting platform, the water pump pumps water and pressurizes to output high-pressure water flow, and a multi-way electromagnetic valve accurately deploys cleaning media to be mixed with the water flow. Through high-speed spraying of the rotary nozzle and flexible moving of a telescopic arm of the automatic cleaning device, the cleaning time is greatly shortened, the car cleaning service efficiency is remarkably improved, and more cars can be cleaned within unit time.
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Description

Technical Field

[0001] This utility model belongs to the field of car wash equipment technology, specifically relating to an automatic car wash machine for cleaning the interior of a car. Background Technology

[0002] In the car wash industry, traditional car wash machines have long focused on cleaning the exterior of vehicles, while cleaning the interior mainly relies on manual operation. The common method is for workers to enter the vehicle and use handheld spray guns. This model has many serious drawbacks: In terms of efficiency, taking a truck as an example, its cargo space is large and the loading area is wide. Workers need to use handheld spray guns to meticulously scrub various parts, a process that is complex and time-consuming. Cleaning the interior of a typical van often takes several hours, greatly limiting the overall efficiency and throughput of the car wash business. This results in a limited number of vehicles that a car wash can serve per unit of time, and excessively long customer wait times negatively impact the customer experience. In terms of labor intensity, this is physically demanding work. Workers endure the recoil while holding a spray gun for extended periods inside the vehicle, maintaining a constant level of physical exertion. Moving comfortably between cargo residue and complex structures can easily lead to physical fatigue. Safety hazards cannot be ignored. The complex environment inside the truck may contain sharp objects and chemicals, posing risks of cuts and poisoning to workers. Poor ventilation can cause moisture and cleaning agent evaporation to accumulate, harming workers' health. Cleaning at heights also carries the risk of falls. In terms of cleaning quality, variations in manual operation lead to inconsistent results. Different workers have different techniques, force, and concentration levels, making it difficult to standardize the cleaning effect inside the truck. Many corners are easily overlooked. In addition, the variety of goods transported by trucks and the diverse types of stains on the truck bed make it difficult for manual cleaning to accurately target the characteristics of the stains, increasing the difficulty and complexity of ensuring high-quality cleaning results. Meanwhile, the internal space of the vehicle compartment is extremely complex. The size, shape and internal layout of the compartments of different vehicle models vary greatly, which brings many obstacles to the development of automatic cleaning equipment. The compartments of vans are long and open, and there may be multiple layers of shelves or rope hooks inside, which increases the blind spots for cleaning. The compartments of small enclosed vans are narrow and compact, making it difficult for cleaning equipment to be deployed. The internal structure and materials of special purpose vehicles such as refrigerated trucks are unique. Not only must the cleaning effect be guaranteed, but the impact on the refrigeration equipment and the insulation performance of the compartment must also be considered. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides the following technical solution: an automatic car wash machine for cleaning the interior of a vehicle, comprising a nozzle and a water pump, wherein the nozzle is connected to the water pump via a pipe, the nozzle is connected to an automatic cleaning device, the automatic cleaning device includes a telescopic arm, the nozzle is connected to the end of the telescopic arm, a controller is provided near the telescopic arm, and the controller is connected to the telescopic arm via a wire or a wireless communication module.

[0004] Furthermore, the automatic cleaning device also includes a lifting platform, and the telescopic arm includes a fixed end and a movable end. The fixed end is connected to the platform of the lifting platform, and the lifting platform is connected to the controller via a wire or a wireless communication module.

[0005] Furthermore, a proximity sensor is provided at the active end, and the proximity sensor is connected to the controller via a wire or a wireless communication module.

[0006] Furthermore, the nozzle is a rotary nozzle.

[0007] Furthermore, the controller is connected to a human-machine interface screen.

[0008] Furthermore, the water pump includes an inlet and an outlet. The inlet is connected to the nozzle via a pipe, and the outlet is connected to a multi-way solenoid valve. The multi-way solenoid valve is connected to the controller via a wire or a wireless communication module.

[0009] The beneficial effects of this utility model are as follows: A water pump pressurizes and outputs a high-pressure water flow; a multi-channel solenoid valve precisely mixes the cleaning medium with the water flow; the mixture is then sprayed at high speed through a rotating nozzle; and the telescopic arm of the automatic cleaning device moves flexibly, greatly shortening the cleaning time and significantly improving the efficiency of car wash operations, allowing more vehicles to be cleaned per unit time. The rotating nozzle sprays the mixed liquid at multiple angles and in all directions, reaching deep into every corner of the vehicle interior to effectively remove various stains, solving the problem of inconsistent quality in manual cleaning and ensuring uniform and high-quality cleaning results. Operators can remotely control the system using a controller, eliminating the need to enter the vehicle interior and avoiding risks such as injury from sharp objects and chemicals, as well as poor ventilation. Simultaneously, proximity sensing... The system features real-time monitoring to prevent equipment collisions and ensure a safe and reliable cleaning process. The lifting platform allows for flexible adjustment of the telescopic arm and nozzle height to suit different vehicle heights, making the car wash machine suitable for various vehicle types, expanding its application range and meeting diverse customer needs. The controller connects to a human-machine interface screen, allowing operators to easily input cleaning commands, adjust parameters, and monitor equipment status and fault information in real time, greatly optimizing the user experience, reducing operational difficulty, and facilitating equipment maintenance and troubleshooting. Through the controller's control of multiple solenoid valves, the appropriate cleaning medium can be flexibly selected and mixed with high-pressure water flow based on the type of dirt inside the vehicle compartment, achieving targeted cleaning, improving cleaning effectiveness, and meeting diverse cleaning needs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a front view of the nozzle in this utility model;

[0012] Figure 3 This is a right view of the nozzle in this utility model;

[0013] Figure 4 This is a diagram showing the first usage state of this utility model;

[0014] Figure 5 This is a diagram showing the second usage state of this utility model.

[0015] The labels in the diagram mean: 1-nozzle; 2-telescopic arm; 3-lifting platform; 4-fixed end; 5-moving end; 6-proximity sensor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides the following technical solution: an automatic car wash machine for cleaning the interior of a vehicle, including a nozzle 1 and a water pump (the water pump is a known prior art product and is not shown in the figure). The nozzle 1 is connected to the water pump through a pipe. The nozzle 1 is connected to an automatic cleaning device. The automatic cleaning device includes a telescopic arm 2. The nozzle 1 is connected to the end of the telescopic arm 2. A controller (the controller is a known prior art product and is not shown in the figure) is provided near the telescopic arm 2. The controller is connected to the telescopic arm 2 through a wire or a wireless communication module.

[0018] With the above structure, the operator can remotely control the movement of the telescopic arm 2 with the help of the controller, and then accurately adjust the position of the nozzle 1 without having to manually approach the carriage to operate. This not only improves the safety of operation, but also greatly enhances the flexibility of the cleaning operation, allowing the nozzle 1 to quickly reach any area to be cleaned in the carriage, thus significantly improving the cleaning efficiency.

[0019] In this embodiment, the automatic cleaning device further includes a lifting platform 3, and the telescopic arm 2 includes a fixed end 4 and a movable end 5. The fixed end 4 is connected to the platform of the lifting platform 3, and the lifting platform 3 is connected to the controller via a wire or a wireless communication module.

[0020] With the above structure, the lifting platform 3 can be flexibly raised and lowered under the control of the controller. It can quickly and accurately adjust the height of the telescopic arm 2 and the nozzle 1 according to the height of different car compartments, ensuring that the car wash machine is suitable for car compartments of various heights, expanding the applicability of the equipment, and avoiding the situation where cleaning is not in place due to differences in car compartment height.

[0021] In this embodiment, a proximity sensor 6 is provided at the active end 5, and the proximity sensor 6 is connected to the controller via a wire or a wireless communication module.

[0022] With the above structure, the proximity sensor 6 can monitor the distance between the movable end 5 of the telescopic arm 2 and the internal structure of the vehicle compartment in real time and promptly feed the data back to the controller. When the distance is too close, the controller quickly adjusts the movement of the telescopic arm 2, effectively preventing the telescopic arm 2 and the nozzle 1 from colliding with the internal structure of the vehicle compartment, protecting the car wash equipment, reducing the risk of equipment damage, and ensuring the smooth progress of the cleaning process, avoiding interruption of the cleaning due to collision.

[0023] In this embodiment, the nozzle 1 is a rotating nozzle 1.

[0024] With the above structure, under the action of high-pressure water flow and cleaning medium mixture, the rotating nozzle 1 can rotate at high speed and spray the mixture into the interior of the car in a multi-angle and all-round manner. Compared with the ordinary fixed nozzle 1, the rotating nozzle 1 greatly increases the cleaning coverage area, can more thoroughly clean every corner of the interior of the car, effectively improve the cleaning quality, and reduce cleaning blind spots.

[0025] In this embodiment, the controller is connected to a human-computer interaction screen (the human-computer interaction screen is a well-known existing technology product and is not shown in the figure).

[0026] With the above structure, operators can easily input cleaning commands through the human-machine interface screen, such as setting the cleaning mode, adjusting the motion parameters of the telescopic arm 2 and the lifting platform 3, etc. The human-machine interface screen can also display the working status and fault information of the car wash machine in real time, which greatly optimizes the user experience of the operators, reduces the difficulty of operation, and makes it convenient for operators to flexibly adjust the working parameters of the car wash machine according to the actual situation. It also enables them to keep abreast of the equipment's operating status, which is convenient for equipment maintenance and troubleshooting.

[0027] In this embodiment, the water pump includes an inlet and an outlet. The inlet is connected to the nozzle 1 via a pipe, and the outlet is connected to a multi-way solenoid valve (the multi-way solenoid valve is a known technology product and is not shown in the figure). The multi-way solenoid valve is connected to the controller via a wire or a wireless communication module.

[0028] With the above structure, the controller can control the multi-way solenoid valve to open different channels, so that the high-pressure water flow mixes with the cleaning medium in different medium tanks and flows to nozzle 1. It can flexibly select the appropriate cleaning medium to mix with the high-pressure water flow according to the type of dirt inside the carriage, so as to achieve targeted cleaning, improve the cleaning effect, and meet different cleaning needs.

[0029] Working Principle: After starting the automatic car wash machine inside the car compartment, the water pump draws water from the water source through the inlet and pressurizes it, outputting a high-pressure water flow through the outlet. One end of the multi-way solenoid valve is connected to the water pump outlet, and the other end is connected through pipes to the media tank storing various special cleaning media (such as strong detergents, disinfectants, etc.) and the water pipe. Under the precise control of the controller, the corresponding channel is quickly opened according to the preset cleaning requirements, so that the high-pressure water flow and the selected cleaning media are fully mixed in the pipe and then flow to the nozzle 1. At the same time, the automatic cleaning device starts to work. Different car compartments have different heights. The lifting platform 3 receives signals through wires under the drive of the controller to complete the lifting action, precisely adjusting the telescopic arm 2 fixed on it and the end connected to the telescopic arm 2. The nozzle 1 is height-adapted to various carriages. Then, the telescopic arm 2 extends or retracts via wires or a wireless communication module according to signals from the controller, flexibly changing the position of the nozzle 1 to help it penetrate every corner of the carriage interior. The proximity sensor 6 at the movable end 5 of the telescopic arm 2 continuously and rapidly feeds back the monitored distance information between the nozzle and the carriage interior structure to the controller via wires or a wireless communication module. If the distance is too close, a signal is immediately sent to the controller, which responds instantly and adjusts the telescopic arm 2 to prevent the nozzle 1 from colliding with the carriage. After the high-pressure water flow and cleaning medium mixture reaches the rotating nozzle 1, the strong pressure causes the nozzle 1 to rotate at high speed, spraying the mixture into the carriage interior in multiple directions and with full coverage. When the cleaning process is complete, the controller, according to a preset program, directs the lifting platform 3 to slowly return to its initial position, the telescopic arm 2 to retract and reset simultaneously, the water pump stops working, and the multi-way solenoid valve closes, stopping the supply of high-pressure water flow and cleaning medium mixture to the nozzle 1. The entire automatic cleaning device returns to its original position, awaiting the next operating instruction.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic car washing machine for washing the interior of a car, comprising a nozzle, a water pump, said nozzle being connected to said water pump by means of a pipe, characterized in that: The nozzle is connected to an automatic cleaning device, which includes a telescopic arm. The nozzle is connected to the end of the telescopic arm, and a controller is located near the telescopic arm. The controller is connected to the telescopic arm via a wire or a wireless communication module. The automatic cleaning device also includes a lifting platform, and the telescopic arm includes a fixed end and a movable end. The fixed end is connected to the platform of the lifting platform, and the lifting platform is connected to the controller via a wire or a wireless communication module.

2. The self-cleaning interior car washing machine according to claim 1, wherein: A proximity sensor is provided at the active end, and the proximity sensor is connected to the controller via a wire or a wireless communication module.

3. The self-cleaning interior car wash of claim 1, wherein: The nozzle is a rotary nozzle.

4. The self-cleaning interior car wash of claim 1, wherein: The controller is connected to a human-machine interface screen.

5. The self-cleaning interior car wash of claim 1, wherein: The water pump includes an inlet and an outlet. The inlet is connected to the nozzle via a pipe, and the outlet is connected to a multi-way solenoid valve. The multi-way solenoid valve is connected to the controller via a wire or a wireless communication module.