Dual-purpose cleaning gun for self-service car washer

Abstract

The utility model discloses a special dual -purpose cleaning gun of self -service car washer relates to self -service car washing equipment technical field, including the water gun body, the launch module integrated in the water gun body and with the receiving module of self -service car washer equipment cooperation, in the utility model, through the reversing knob of magnet and magnetic switch realization foam spraying and high -pressure washing mode's quick switching, and the signal interaction of gun body and equipment is realized to the collocation 4.1G wireless communication link, the start -stop button on handheld gun body supports toggle and jog control, need not to and back to the general control panel can be convenient start -stop, and through signal control pump body stop avoids the problem of pressure shutdown, the interlock logic of receiving module built -in prevents mode conflict, both solved the single function of traditional cleaning gun, no interaction, the problem of complicated operation, and has improved car washing efficiency, equipment stability and service life, has reduced maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of self-service car wash equipment, specifically a dual-purpose cleaning gun for self-service car wash machines. Background Technology

[0002] In the field of self-service car wash equipment technology, the cleaning guns currently used in self-service car wash machines have many technical limitations, making it difficult to meet users' needs for efficient and convenient car washing. Specific problems are as follows:

[0003] One of the main problems with existing car wash guns is their limited functionality. Most car wash guns can only perform a single high-pressure water jet rinsing function and cannot quickly switch to other cleaning modes such as foam spraying to meet the diverse needs of actual car wash scenarios. This forces users to use additional tools or equipment to complete steps such as foam application during the car wash process, increasing the complexity of the car wash procedure.

[0004] More importantly, existing car wash guns completely lack communication capabilities with self-service car wash machines. The wash guns exist merely as simple water dispensers, unable to transmit any control commands to the machine, and there is no signal exchange between the two. This lack of communication makes the car wash process extremely cumbersome and results in a poor user experience.

[0005] In terms of ease of operation, the start and stop control of existing water guns heavily relies on the central control panel of the self-service car wash machine. During the car wash process, users must go to the central control panel to operate whenever they need to start or stop the water guns or switch working modes. This cannot be done directly while holding the water gun, which greatly reduces the ease of operation and significantly affects the efficiency of car washing.

[0006] Furthermore, the existing shutdown methods for this equipment have serious flaws. Traditionally, shutdown is mostly achieved by closing the water gun valve to pressure-stop the pump and motor, leaving them under constant pressure. This pressurized operation easily leads to excessive wear and aging of components, severely shortening the lifespan of the pump and motor, and increasing equipment maintenance costs and failure rates.

[0007] Therefore, developing a dedicated cleaning gun for self-service car wash machines that has communication capabilities between the water gun and the equipment, supports rapid switching between multiple working modes, and allows for convenient start-stop control has become an urgent need to address current technical pain points, improve user experience, and extend equipment lifespan. Utility Model Content

[0008] The purpose of this utility model is to provide a dual-purpose cleaning gun specifically for self-service car wash machines, so as to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the present invention provides a dual-purpose cleaning gun for self-service car wash machines, including a water gun body, a transmitting module integrated in the water gun body, and a receiving module that works with the self-service car wash machine equipment.

[0010] The transmitting module includes a signal transmitting unit, a mode switching component for switching cleaning modes, a start-stop control component for controlling start-stop, and a first power supply unit for supplying power to the transmitting module.

[0011] The receiving module includes a signal receiving unit that communicates wirelessly with the signal transmitting unit, a control unit for processing control signals, an execution component for executing control commands, and a second power supply unit for powering the receiving module.

[0012] The mode switching component and the start / stop control component are electrically connected to the signal transmitting unit, respectively, and are used to trigger the signal transmitting unit to transmit corresponding control signals.

[0013] The signal receiving unit is electrically connected to the control unit, and the control unit is electrically connected to the execution component. It is used to control the action of the execution component according to the received control signal to perform cleaning mode switching and start / stop control.

[0014] Furthermore, the signal transmitting unit is a 4.1G wireless transmitting module, and the signal receiving unit is a 4.1G wireless receiving module matched with the 4.1G wireless transmitting module; the signal transmitting unit distinguishes different cleaning modes and start / stop commands by transmitting wireless signals of different frequencies.

[0015] Furthermore, the mode switching component includes a reversing knob with a magnet and at least two magnetic switches. The reversing knob is installed on the outer wall of the water gun body, and the magnetic switches are fixed inside the water gun body and electrically connected to the signal transmitting unit. The magnetic switches correspond to different cleaning modes. When the reversing knob is rotated to the target mode position, the magnet corresponds to the position of the magnetic switch at the corresponding position, triggering the signal transmitting unit to transmit the control signal corresponding to that mode. The cleaning modes include at least a foam spray mode and a high-pressure rinsing mode.

[0016] Furthermore, the start / stop control component is a start / stop button installed on the outer wall of the water gun body. The start / stop button is electrically connected to the signal transmitting unit. The start / stop button has a toggle switching function and a jog function. In toggle mode, the first press starts the transmission signal and the second press stops the transmission signal. In jog mode, the first press starts the transmission signal and the second press stops the transmission signal.

[0017] Furthermore, the first power supply unit is a rechargeable lithium battery, which is built into the water gun body to power the signal transmission unit, mode switching component and start / stop control component.

[0018] Furthermore, the control unit is a microcontroller with a pre-set program that corresponds to the signal frequency and function, and has built-in interlocking logic that blocks the signal of another cleaning mode when a signal of one cleaning mode is received; the execution components include a relay group, and the signal output terminals of the relay group are respectively connected to the high-pressure pump, foam pump and water circuit reversing valve of the self-service car wash machine.

[0019] Furthermore, the receiving module also includes a step-down module. The second power supply unit supplies power to the signal receiving unit and the control unit after being regulated by the step-down module. The relay group controls the start and stop of the high-pressure pump and the foam pump, as well as the switching of the water circuit reversing valve, to realize the output of the corresponding cleaning mode.

[0020] Furthermore, the receiving module can be an independent module set up separately in the self-service car wash machine equipment, or an integrated module integrated on the motherboard of the self-service car wash machine and merged with the motherboard control system.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. Enables rapid switching between multiple cleaning modes, solving the problem of limited functionality: Through a mode switching component (a reversing knob with a magnet and a corresponding magnetic switch) and a wireless communication mechanism, users can directly rotate the knob on the cleaning gun to switch between foam spraying mode and high-pressure rinsing mode. No additional tools are required, simplifying the switching operation from rinsing to foam application in the car wash process and meeting the needs of diverse car wash scenarios.

[0023] 2. Establish wireless communication between the cleaning gun and the equipment, breaking through the limitation of no interaction: A communication link is built by using a 4.1G wireless transmitting module and receiving module. The cleaning gun can transmit mode switching and start / stop control commands to the self-service car wash machine by transmitting signals of different frequencies, realizing signal interaction between the cleaning gun and the equipment, and changing the single attribute of the traditional cleaning gun as only a water dispensing tool.

[0024] 3. Handheld start / stop control enhances ease of operation and efficiency: The gun body integrates start / stop buttons with toggle and jog functions, allowing users to directly control the equipment's start and stop while holding the cleaning gun, eliminating the need to return to the self-service car wash's main control panel. The toggle mode is suitable for continuous operation, while the jog mode is suitable for short-time rinsing, significantly improving operational convenience and shortening car wash time.

[0025] 4. Optimize shutdown methods and extend equipment life: A stop signal is transmitted through the start / stop button, and the control unit of the receiving module drives the execution component (relay group) to stop the high-pressure pump and foam pump. This avoids the situation where the pump and motor are shut down under pressure by closing the water gun valve in the traditional way, reducing excessive wear and aging of components, and lowering equipment maintenance costs and failure rate.

[0026] 5. Mode interlock ensures operational stability: The control unit (microcontroller) of the receiving module has built-in interlock logic. When receiving a cleaning mode signal, it automatically blocks the other mode signal, ensuring that the foam spraying mode and the high-pressure flushing mode will not run at the same time, avoiding equipment malfunction and resource waste, and improving operational safety and stability. Attached Figure Description

[0027] Figure 1 This is a layout diagram of the firing module in the dual-purpose cleaning gun for self-service car wash machines of this utility model;

[0028] Figure 2 This is a schematic diagram of the receiver end in the dual-purpose cleaning gun for self-service car wash machines of this utility model;

[0029] Figure 3 This is a schematic diagram of the knob magnetic switch in the dual-purpose cleaning gun for self-service car wash machines of this utility model.

[0030] Figure label:

[0031] 1. Water gun body; 2. Launching module; 3. Lithium battery; 4. Clean water setting magnetic switch; 5. Foam setting magnetic switch; 6. Start / stop button; 7. Receiver module; 8. Relay group; 9. Voltage reduction module; 10. Water circuit reversing valve; 11. Reversing knob; 12. Flushing setting solenoid valve; 13. High-pressure water inlet pipe; 14. Foam setting solenoid valve; 15. Flushing water outlet pipe; 16. Foam water outlet pipe. Detailed Implementation

[0032] 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.

[0033] See Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of a dual-purpose cleaning gun for self-service car wash machines is provided:

[0034] Example 1: The receiving module 7 is a separate module:

[0035] The dual-purpose cleaning gun for self-service car wash machines in this embodiment includes a water gun body 1, a transmitting module 2 disposed within the water gun body 1, and a receiving module 7 independently disposed within the self-service car wash machine equipment. The specific structure and working principle are as follows:

[0036] Launch Module 2:

[0037] The launching module 2 is integrated into the water gun body 1. It mainly consists of a signal launching unit, a knob switching component, a start / stop button, and a first power supply unit. Each component is installed in the corresponding position of the gun body according to the layout of the launching module 2 (the start / stop button and knob are installed on the outer wall of the gun body, and the magnetic switch, the main body of the launching module 2, and the lithium battery 3 are built into the gun body).

[0038] Signal transmitting unit: It adopts a modular design. In this embodiment, a 4.1G wireless transmitting module 2 is selected, which supports the transmission of control signals of different frequencies to distinguish the working mode and start / stop commands.

[0039] The knob switching assembly includes a reversing knob 11 with a magnet and two magnetic switches (corresponding to the foam and clean water modes, i.e., foam spray mode and high-pressure wash mode, respectively). The knob is mounted on the outer wall of the gun body and has a built-in magnet; the two magnetic switches are fixed inside the gun body, electrically connected to the signal transmitting unit, and correspond to the two positions of the knob. When the knob is rotated to the high-pressure wash mode position, the magnet corresponds to the position of the clean water mode magnetic switch 4, and the magnetic switch closes under the action of the magnetic field, triggering the 4.1G wireless transmitting module 2 to transmit a high-pressure wash mode signal at frequency f1; when rotated to the foam spray mode position, the magnet corresponds to the position of the foam mode magnetic switch 5, triggering the transmission of a foam spray mode signal at frequency f2. The knob switching assembly adopts a self-locking mode, continuously transmitting the corresponding signal after rotating to the target position until switching to another position.

[0040] Start / Stop Button 6: This is the only control button on the gun body, installed on the outer wall of the gun body, and electrically connected to the signal transmitting unit. This button has a toggle switching function. The first press transmits a start signal at frequency f3, and the second press transmits a stop signal at frequency f4. It also supports a momentary mode, where pressing transmits a start signal at f3 and releasing transmits a stop signal at f4, suitable for short-duration flushing operations.

[0041] First power supply unit: A rechargeable lithium battery 3 is used to power the signal transmission unit, the rotary switching assembly and the start / stop button 6.

[0042] Receiver module 7:

[0043] The receiving module 7 is independently installed in the self-service car wash machine equipment and is electrically connected to the car wash machine control system. It consists of a signal receiving unit, a controller, a relay group 8, a step-down module 9, and a second power supply unit.

[0044] Signal receiving unit: The corresponding transmitter module 2 is a 4.1G wireless receiver module, which is used to receive the 4.1G control signal transmitted by the transmitter module 2.

[0045] Controller: It adopts a microcontroller and has a pre-set program that corresponds to the signal frequency and function (f1 corresponds to high pressure flushing mode, f2 corresponds to foam spraying mode, f3 corresponds to start, and f4 corresponds to stop). It also has built-in interlock logic - when receiving the f1 signal, the f2 signal is blocked, and when receiving the f2 signal, the f1 signal is blocked, to prevent the two modes from working at the same time.

[0046] Relay group 8 and output terminals: The signal output terminals of relay group 8 are respectively connected to the high-pressure pump terminal, foam button terminal and flushing button terminal of the car wash machine main board. The controller controls the high-pressure water pump, foam pump and water circuit reversing valve 10 by controlling the relay action.

[0047] Power supply unit: includes step-down module 9 and second power supply unit. The second power supply unit is an independent power supply, which supplies power to the signal receiving unit and controller after being regulated by step-down module 9.

[0048] Workflow:

[0049] When the user rotates the knob to the high-pressure flushing mode, the 4.1G wireless transmitter 2 transmits the f1 signal, which is received by the 4.1G wireless receiver and transmitted to the microcontroller. The microcontroller controls the relay group 8 to trigger the high-pressure pump to operate, and the water circuit reversing valve 10 switches to connect the high-pressure water inlet pipe 13 and the flushing outlet pipe 15, realizing high-pressure water flushing. When rotated to the foam spraying mode, the f2 signal is transmitted, and the microcontroller controls the foam pump to operate. The water circuit reversing valve 10 switches to the foam outlet pipe 16, realizing foam spraying. When the start / stop button 6 is pressed, the first transmission of the f3 signal triggers the motor to start, and the second transmission of the f4 signal directly controls the motor to stop, avoiding component damage caused by water pressure stalling.

[0050] Example 2: The receiving module 7 is integrated on the car wash machine's mainboard:

[0051] This embodiment of the self-service car wash machine's dual-purpose cleaning gun includes a water gun body 1, a transmitting module 2 disposed within the water gun body 1, and a receiving module 7 integrated on the self-service car wash machine's main board. The structure of the transmitting module 2 is the same as in embodiment one. The specific structure and working principle of the receiving module 7 are as follows:

[0052] Launch Module 2:

[0053] Completely identical to Embodiment 1, it includes a 4.1G wireless transmission module 2, a rotary knob switching assembly with magnets (including magnetic switches 4 for foam and water modes), a start / stop button 6 with toggle and jog functions, and a first power supply unit powered by a rechargeable lithium battery 3. All components are installed on the gun body in the layout of the transmission module 2.

[0054] Receiver module 7:

[0055] The receiving module 7 is integrated on the car wash machine's main board and merged with the main board control system. It consists of a signal receiving unit, a main board control unit, a relay group 8, and a step-down module 9.

[0056] Signal receiving unit: A 4.1G wireless receiving module is selected and integrated into the car wash machine motherboard to receive the 4.1G control signal from the transmitting module 2.

[0057] Mainboard control unit: It is integrated with the original control unit of the mainboard, and has the same signal frequency correspondence program and interlock logic as in Embodiment 1, and directly processes the received control signals.

[0058] Relay group 8 and output terminal: Relay group 8 is integrated on the main board. The signal output terminal is directly connected to the high-pressure pump terminal, foam button terminal and flush button terminal of the main board. The main board controls the operation of the high-pressure water pump, foam pump and water circuit reversing valve 10 (including foam stop solenoid valve 14 and flush stop solenoid valve 12).

[0059] Power supply unit: Powered by the car wash machine main board power supply, and after being regulated by step-down module 9, it powers the signal receiving unit and related circuits of the main board control unit.

[0060] Workflow: When the user operates the knob or start / stop button 6, the 4.1G signal transmitted by the transmitting module 2 is received by the 4.1G wireless receiving module integrated on the motherboard and transmitted to the motherboard control unit. The control unit controls the relay group 8 to operate according to the signal frequency: when receiving the f1 signal, it controls the high-pressure pump and the flushing solenoid valve 12 to operate, realizing high-pressure flushing; when receiving the f2 signal, it controls the foam pump and the foam solenoid valve 14 to operate, realizing foam spraying; when receiving the f3 / f4 signals, it directly controls the motor to start / stop. The self-locking and mode interlocking logic when switching the knob is implemented by the motherboard control unit to ensure safe and efficient operation.

Claims

1. A dual-purpose cleaning gun for self-service car wash, characterized in that, It includes a water gun body (1), a launching module (2) integrated into the water gun body (1), and a receiving module (7) that works with the self-service car wash equipment. The transmitting module (2) includes a signal transmitting unit, a mode switching component for switching cleaning modes, a start-stop control component for controlling start-stop, and a first power supply unit for supplying power to the transmitting module (2). The receiving module (7) includes a signal receiving unit that communicates wirelessly with the signal transmitting unit, a control unit for processing control signals, an execution component for executing control commands, and a second power supply unit for powering the receiving module (7); The mode switching component and the start / stop control component are electrically connected to the signal transmitting unit, respectively, and are used to trigger the signal transmitting unit to transmit corresponding control signals. The signal receiving unit is electrically connected to the control unit, and the control unit is electrically connected to the execution component. It is used to control the action of the execution component according to the received control signal to perform cleaning mode switching and start / stop control.

2. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The signal transmitting unit is a 4.1G wireless transmitting module, and the signal receiving unit is a 4.1G wireless receiving module that is matched with the 4.1G wireless transmitting module. The signal transmitting unit distinguishes different cleaning modes and start / stop commands by transmitting wireless signals of different frequencies.

3. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The mode switching component includes a reversing knob with a magnet and at least two magnetic switches. The reversing knob is installed on the outer wall of the water gun body (1), and the magnetic switches are fixed inside the water gun body (1) and electrically connected to the signal transmitting unit. The magnetic switches correspond to different cleaning modes. When the reversing knob (11) is rotated to the target mode position, the magnet corresponds to the position of the magnetic switch of the corresponding position, triggering the signal transmitting unit to transmit the control signal corresponding to the mode. The cleaning modes include at least the foam spray mode and the high-pressure rinsing mode.

4. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The start / stop control component is a start / stop button (6) installed on the outer wall of the water gun body (1). The start / stop button (6) is electrically connected to the signal transmitting unit. The start / stop button (6) has a toggle switching function and a jog function. In the toggle mode, the first press of the launch start signal and the second press of the launch stop signal are used. In the jog mode, the launch start signal is pressed and the launch stop signal is released.

5. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The first power supply unit is a rechargeable lithium battery (3), which is built into the water gun body (1) to supply power to the signal transmission unit, mode switching component and start / stop control component.

6. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The control unit is a microcontroller. The microcontroller has a pre-set program that corresponds to the signal frequency and function, and has built-in interlocking logic. When a cleaning mode signal is received, the other cleaning mode signal is blocked. The execution components include a relay group (8). The signal output terminals of the relay group (8) are respectively connected to the high-pressure pump, foam pump and water circuit reversing valve (10) of the self-service car wash machine.

7. The dual-purpose cleaning gun for self-service car wash machines as described in claim 6, characterized in that: The receiving module (7) also includes a step-down module (9). The second power supply unit supplies power to the signal receiving unit and the control unit after being regulated by the step-down module (9). The relay group (8) controls the start and stop of the high-pressure pump and the foam pump and the switching of the water circuit reversing valve (10) to realize the output of the corresponding cleaning mode.

8. The dual-purpose cleaning gun for self-service car wash machines as described in claim 1, characterized in that: The receiving module (7) is an independent module set independently in the self-service car wash machine equipment, or an integrated module integrated on the self-service car wash machine motherboard and integrated with the motherboard control system.

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