Trigger-free spray gun of cleaning machine

Abstract

A trigger-free spray gun of a cleaning machine relates to the technical field of cleaning machine spray gun equipment. The water gun comprises a water gun shell, the lower section of the water gun shell is a handheld part, the upper section of the water gun shell is a gun barrel part, a PCB control panel is arranged in the handheld part, a key switch is arranged on the PCB control panel, a key is arranged on the key switch, the key extends out of the handheld part and is located at the index finger position of the handheld part, and a wireless module is further arranged on the PCB control panel. The spring key switch is matched with the wireless transmission module for on-off control, the spray gun can be started through easy pressing, the spray gun is not prone to fatigue after being used for a long time, use is easy, operation is convenient, the size of the spray gun is greatly reduced, the structure of the spray gun is simplified, and better use experience is brought to a user.

Description

Technical Field

[0001] The utility model relates to a trigger-free spray gun for a cleaning machine, and relates to the technical equipment field of spray guns for cleaning machines. Background Art

[0002] A cleaning machine is a machine used to clean vehicles or equipment. It mainly operates a spray gun to perform cleaning operations. A high-pressure water pump provides clean water to the spray gun. Pressing the trigger on the spray gun can start the cleaning operation.

[0003] Most existing spray guns for cleaning machines use a trigger as a trigger mechanism, and the purpose of spraying water is achieved by pressing the pressure valve with the trigger. However, due to the pressure valve in the water gun, a large force is required to pull the trigger, and long-term pressing will cause discomfort to the user's fingers. In addition, the overall structure of the traditional water gun is relatively complex, and the production and assembly are relatively troublesome, and the production cost is relatively high. Therefore, the trigger structure has been improved in the prior art. For example, the patent technology with announcement number CN116273562A discloses a spray gun structure of a high-pressure cleaning device, which belongs to the technical field of high-pressure cleaning machines. It solves the problem that the hand is prone to fatigue when holding the trigger for a long time after the gun valve is fully opened. The spray gun structure of the high-pressure cleaning equipment includes a gun housing, a gun valve arranged in the gun housing, and a trigger mechanism connected to the gun housing and capable of controlling the opening of the gun valve. The gun valve includes a valve core, and the trigger mechanism includes a lever and a trigger. The front end of the lever is hinged on the gun housing and the end has a driving part. The lower end of the trigger is hinged on the gun housing. When the trigger rotates backward, the upper end of the trigger gradually lifts the rear end of the lever upward through a roller so that the driving part drives the valve core to move downward. In this structure, the lever rear end length is much greater than the lever front end length, which can easily drive the lever to rotate and drive the valve core to move downward, making the opening of the spray gun easier and more labor-saving. Although the lever in this solution makes the trigger easier to pull, its overall structure is still relatively complicated, and the overall volume is larger after the lever structure is adopted, and the gripping experience is not good when using it. Utility Model Content

[0004] The purpose of the utility model is to provide a trigger-free spray gun for a cleaning machine in response to the defects or shortcomings in the prior art. The switch is controlled by adopting a spring button switch in conjunction with a wireless transmission module. The spray gun can be turned on by simply pressing it. It is not easy to get tired after long-term use. It is simple to use and easy to operate. The size of the spray gun is greatly reduced, the structure of the spray gun is simplified, and a better user experience is brought to the user.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a water gun housing 3, the lower section of the water gun housing 3 is a hand-held part 3-1, the upper section is a gun barrel part, a PCB control board 6 is arranged in the hand-held part 3-1, a key switch 7 is arranged on the PCB control board 6, a key 4 is arranged on the key switch 7, the key 4 extends to the outside of the hand-held part 3-1, and the key 4 is located at the index finger position of the hand-held part 3-1, and a wireless module 8 is also arranged on the PCB control board 6.

[0006] Furthermore, a spring 5 is provided inside the button 4 and is connected to a PCB control board 6 .

[0007] Furthermore, a battery compartment is provided in the handheld portion 3 - 1 , and a dry cell battery 9 is provided in the battery compartment.

[0008] Furthermore, a hollow groove is provided in the water gun housing 3, a bent tube 2 is provided in the hollow groove, and the bent tube 2 passes through the gun barrel part and the hand-held part 3-1.

[0009] Furthermore, the bent tube 2 is provided with a water outlet nozzle 1 at the end of the barrel portion.

[0010] Furthermore, the bending tube 2 is provided with a water gun interface 10 at the end port of the hand-held part 3 - 1 .

[0011] Furthermore, three continuous arc-shaped grooves are provided on the hand-held portion 3-1.

[0012] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by using a spring button switch in conjunction with a wireless transmission module for switch control, the spray gun can be turned on by easily pressing, it is not easy to get tired after long-term use, it is simple to use and easy to operate, it greatly reduces the size of the spray gun, simplifies the spray gun structure, and brings a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Explanation of the reference numerals: water outlet nozzle 1, bending tube 2, water gun housing 3, button 4, spring 5, PCB control board 6, button switch 7, wireless module 8, dry battery 9, water gun interface 10, handheld part 3-1. DETAILED DESCRIPTION

[0017] See also Figure 1-2 As shown, the technical solution adopted in this specific embodiment is: it includes a water gun shell 3, the lower section of the water gun shell 3 is a handheld part 3-1, and the upper section is a gun barrel part. A PCB control board 6 is arranged in the handheld part 3-1, and a key switch 7 is arranged on the PCB control board 6. A key 4 is arranged on the key switch 7, and the key 4 extends to the outside of the handheld part 3-1, and the key 4 is located at the index finger position of the handheld part 3-1. A wireless module 8 is also arranged on the PCB control board 6, and a battery compartment is arranged in the handheld part 3-1, and a dry battery 9 is arranged in the battery compartment. In this embodiment, the key switch, the wireless module, and the dry battery are arranged on the PCB control board. A wireless transmitting module is formed on the cleaning machine, and a wireless receiving module is arranged on the cleaning machine. When the button is pressed, the button switch is triggered to be connected, and the wireless module sends a connection signal to the wireless receiving module. The wireless receiving module starts the cleaning machine and starts to provide high-pressure water. By adopting the combination of button and button switch to replace the traditional trigger structure, it is easier to press when in use, and it is not easy to cause fatigue after long-term operation, and the user experience is better. At the same time, it also simplifies the overall structure of the spray gun, which is conducive to miniaturization of the spray gun, reducing the weight of the spray gun, and being more convenient for long-term operation. The wireless signal transmission method is used to start the cleaning machine and the response is faster.

[0018] More specifically, a spring 5 is provided inside the button 4 and connected to a PCB control board 6. The spring provides a restoring force for the button, and the operating feel is better.

[0019] To be more specific, a hollow groove is provided in the water gun housing 3, a bent tube 2 is provided in the hollow groove, the bent tube 2 passes through the barrel part and the hand-held part 3-1, the bent tube 2 is provided with a water outlet nozzle 1 at the end of the barrel part, and the bent tube 2 is provided with a water gun interface 10 at the end port of the hand-held part 3-1. A straight bent tube is provided in the water gun housing to better waterproof the interior without adopting too many waterproof sealing structures, which is conducive to simplifying the assembly process, reducing production costs, and improving production efficiency.

[0020] To be more specific, the hand-held portion 3 - 1 is provided with three continuous arc-shaped grooves, and the four continuous arc-shaped grooves are used for anti-slip holding, and a coating layer can be provided thereon to improve the grip feel as needed.

[0021] The working principle of the utility model is as follows: a wireless transmitting system is formed by arranging a PCB control board 6, a key switch 7 and a wireless module 8 in the handheld part 3-1, and a key 4 with a spring 5 is arranged at the index finger position of the handheld part 3-1. The key switch 7 can be triggered by simply pressing the key 4, and the start signal is sent to the wireless receiving module of the cleaning machine through the wireless module 8, so that the cleaning machine can be started to supply water for cleaning. The traditional trigger structure is eliminated, thereby simplifying the overall structure of the spray gun, which is beneficial to reducing the size of the spray gun, and providing a better operating feel, and it is not easy to get tired even after long-term use.

[0022] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A triggerless spray gun for a cleaning machine, characterized in that: The water gun shell (3) comprises a water gun shell (3), wherein the lower section of the water gun shell (3) is a hand-held part (3-1), and the upper section is a gun barrel part; a PCB control board (6) is arranged inside the hand-held part (3-1); a key switch (7) is arranged on the PCB control board (6); a key (4) is arranged on the key switch (7); the key (4) extends outside the hand-held part (3-1), and the key (4) is located at the index finger position of the hand-held part (3-1); and a wireless module (8) is also arranged on the PCB control board (6).

2. A triggerless spray gun for cleaning machine according to claim 1, characterized in that: The button (4) is provided with a spring (5) connected to a PCB control board (6).

3. A triggerless spray gun for cleaning machine according to claim 1, characterized in that: The handheld part (3-1) is provided with a battery compartment, and a dry cell (9) is provided in the battery compartment.

4. A triggerless spray gun for cleaning machine according to claim 1, characterized in that: A hollow groove is arranged in the water gun shell (3), a bent tube (2) is arranged in the hollow groove, and the bent tube (2) runs through the gun barrel part and the hand-held part (3-1).

5. A triggerless spray gun for cleaning machine according to claim 4, characterized in that: The bent tube (2) is provided with a water outlet nozzle (1) at the end of the barrel portion.

6. A triggerless spray gun for cleaning machine according to claim 4, characterized in that: The bent tube (2) is provided with a water gun interface (10) at the end port of the handheld part (3-1).

7. A triggerless spray gun for cleaning machine according to claim 1, characterized in that: The hand-held part (3-1) is provided with three continuous arc-shaped grooves.

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