A new river environment maintenance machine

Abstract

The utility model discloses a novel riverway environment maintenance machine, include: car body subassembly, spray subassembly, dust suppression subassembly and handheld subassembly, spray subassembly sets up on car body subassembly for rotating adjustment carries out high place spraying, dust suppression subassembly sets up on car body subassembly for dust suppression to ground water spray, handheld subassembly sets up on car body subassembly for handheld water spray, spray subassembly includes horizontal rotation subassembly and longitudinal rotation subassembly, horizontal rotation subassembly sets up on car body subassembly, longitudinal rotation subassembly sets up on horizontal rotation subassembly, horizontal rotation subassembly includes mounting bracket, rotation column, connecting pipe, two belt pulleys, two discs, four around pole, rectangle plate, cylinder, motor no.

Description

Technical Field

[0001] This utility model relates to the field of river maintenance technology, specifically to a new type of river environment maintenance machine. Background Technology

[0002] With social development and improved education levels, the public's environmental awareness has gradually increased, leading to greater attention to the ecological environment of rivers. People have recognized the importance of river ecosystems, actively participating in river protection volunteer activities, monitoring river pollution, and placing higher demands on the river maintenance work of the government and relevant departments. This shift in public awareness has provided strong social support for river maintenance, prompting governments and enterprises to increase investment in river maintenance, promoting innovation and development in river maintenance technologies, and creating a positive atmosphere for the whole society to participate in river protection. Maintaining the riverbanks and roads surrounding the rivers is also a crucial aspect of river maintenance.

[0003] However, in existing technologies, when spraying water for maintenance on roads or embankments around river channels, the spraying is mostly done into the air or on the ground. However, the direction of spraying is limited. When spraying on the ground, it is difficult to adjust the direction to spray into the air. When adjusting the direction of the air spray and aiming it at the ground, the effect of spraying on the ground is not good. Summary of the Invention

[0004] The purpose of this utility model is to provide a new type of river environment maintenance machine, which has the advantages of being multifunctional and capable of spraying water to maintain and remove dust from roads and river embankments around the river, and can be freely combined according to actual conditions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel river environment maintenance machine, comprising a vehicle body assembly, a spray assembly, a dust suppression assembly, and a handheld assembly. The spray assembly is mounted on the vehicle body assembly for rotating and adjusting for high-altitude spraying. The dust suppression assembly is mounted on the vehicle body assembly for spraying water onto the ground to suppress dust. The handheld assembly is mounted on the vehicle body assembly for handheld spraying of water.

[0006] Furthermore, the spray assembly includes a lateral rotation assembly and a longitudinal rotation assembly. The lateral rotation assembly is mounted on the vehicle body assembly, and the longitudinal rotation assembly is mounted on the lateral rotation assembly. The lateral rotation assembly includes a mounting bracket, a rotating column, a connecting pipe, two pulleys, two discs, four winding rods, a rectangular plate, a cylinder, a motor, a winding reel, a hose, and a water pump. The mounting bracket is mounted on the vehicle body assembly, and the rotating column is mounted on the vehicle body assembly. The top of the rotating column is fixedly connected to the bottom of the mounting bracket. The connecting pipe is fixedly mounted on the rotating column. Both pulleys are located inside the vehicle body assembly, and the corresponding pulleys are fixedly connected to the bottom of the rotating column. The discs are all housed within the vehicle body assembly. Each disc is fixedly connected to the bottom of its corresponding pulley. The four winding rods are fixedly installed between two discs. The rectangular plate is housed within the vehicle body assembly. The cylinder is rotatably mounted on the rectangular plate. The top of the cylinder is fixedly connected to its corresponding disc. The first motor is fixedly installed at the bottom of the rectangular plate. The output shaft of the first motor is fixedly connected to the cylinder. The take-up reel is housed within the vehicle body assembly. The corresponding pulley is fixedly sleeved on the take-up reel. The hose is wound around the take-up reel. One end of the hose is fixedly connected to the connecting pipe. The first water pump is housed within the vehicle body assembly. One end of the hose is fixedly connected to the first water pump.

[0007] Furthermore, the longitudinal rotation assembly includes two connecting rods, a high-pressure fog cannon, and a second motor. Both connecting rods are rotatably mounted on the mounting frame. The high-pressure fog cannon is fixedly mounted between the two connecting rods. The second motor is fixedly mounted on one side of the outer wall of the mounting frame. The output end of the second motor is fixedly connected to one end of the corresponding connecting rod, and one end of the connecting pipe is fixedly connected to the high-pressure fog cannon.

[0008] Furthermore, the vehicle body assembly includes a mobile vehicle, two sweeping brushes, a mounting box, and a water tank. Both sweeping brushes are mounted on the mobile vehicle. The mounting box is fixedly mounted on the mobile vehicle. The water tank is fixedly mounted on the bottom inner wall of the mounting box. The rotating column is rotatably mounted on the mounting box. The rectangular plate is fixedly mounted between the mounting box and the water tank. The winding wheel is rotatably mounted between the mounting box and the water tank. The water pump is fixedly mounted on the top of the water tank.

[0009] Furthermore, the dust suppression assembly includes a fixed frame, an injection pipe, a horizontal pipe, nozzles, an auxiliary frame, a second water pump, and a solenoid three-way valve. The fixed frame is fixedly installed on one outer wall of the mounting box, the injection pipe is fixedly installed on the mounting box, the horizontal pipe is fixedly installed on the fixed frame, the nozzles are evenly distributed on the horizontal pipe, the auxiliary frame is fixedly installed on one outer wall of the mounting box and is fixedly connected to the horizontal pipe, the second water pump is fixedly installed at the bottom of the mounting box, and the solenoid three-way valve is fixedly installed on one inner wall of the mounting box. The second water pump and the solenoid three-way valve are connected through a water pipe, and the solenoid three-way valve is connected to the injection pipe through a water pipe.

[0010] Furthermore, the fixing frame is arranged in a Z-shape, and the nozzles at both ends of the horizontal tube are arranged in a downward tilt.

[0011] Furthermore, the handheld assembly includes a placement frame, a spray gun, and a mounting tube. The placement frame is fixedly installed on one outer wall of the mounting box, the spray gun is placed on the placement frame, and the mounting tube is fixedly installed on the spray gun. The mounting tube is connected to a solenoid three-way valve.

[0012] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0013] This invention utilizes a spray assembly. When a water pump is activated, it draws water from a tank, which then flows into a flexible hose. The hose injects the water into a connecting pipe, which in turn directs it into a high-pressure mist cannon. The high-pressure mist cannon atomizes the water and sprays it into the air. Simultaneously, a motor is activated, rotating a cylinder that drives a disc and a winding rod. The disc drives a pulley, which, via a transmission belt, drives a winding wheel. The winding wheel's rotation causes the hose to rotate and unwind. The pulley's rotation... When activated, the rotating column rotates, causing the mounting bracket and high-pressure mist cannon to rotate laterally to adjust the spray direction. The winding wheel and the coiling rod work together to wind and unwind the hose, preventing it from being stretched and deformed during spray direction adjustments, which could clog the water supply. Starting the second motor causes the connecting rod to rotate, which in turn causes the high-pressure mist cannon to rotate longitudinally, adjusting the spray angle. This allows for free adjustment of the spray angle and direction, preventing the hose from being stretched and deformed during adjustment, thus preventing water clogging.

[0014] This utility model, by setting up a dust suppression component, starts a second water pump, which draws water from the water tank. It then activates a solenoid three-way valve, opening the passage. The second water pump injects water through a water pipe into the solenoid three-way valve, which then guides the water through the water pipe into an injection pipe. The injection pipe discharges the water into a horizontal pipe, where it gathers and is sprayed outwards through nozzles to moisten and reduce dust on the ground. This invention has the advantages of spraying water on the ground while driving to reduce dust and maintaining roads and embankments around rivers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a novel river environment maintenance machine according to this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of a novel river environment maintenance machine according to this utility model;

[0017] Figure 3 This is a side view of the structure of a novel river environment maintenance machine according to the present invention;

[0018] Figure 4 This is a partial cross-sectional structural schematic diagram of a novel river environment maintenance machine according to the present invention.

[0019] In the diagram: 1. Vehicle body assembly; 101. Mobile vehicle; 102. Sweeping brush; 103. Mounting box; 104. Water tank; 2. Spray assembly; 201. Mounting frame; 202. Rotating column; 203. Connecting pipe; 204. Pulley; 205. Disc; 206. Winding rod; 207. Rectangular plate; 208. Cylinder; 209. Motor 1; 210. Rewinding wheel; 211. Hose; 212. Water pump 1; 213. Connecting rod; 214. High-pressure mist cannon; 215. Motor 2; 3. Dust suppression assembly; 301. Fixing frame; 302. Injection pipe; 303. Horizontal pipe; 304. Nozzle; 305. Auxiliary frame; 306. Water pump 2; 307. Solenoid three-way valve; 4. Handheld assembly; 401. Placement frame; 402. Spray gun; 403. Mounting pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] This utility model provides, for example Figures 1-4 As shown, a novel river environment maintenance machine includes a vehicle body assembly 1, a spray assembly 2, a dust suppression assembly 3, and a handheld assembly 4. The spray assembly 2 is mounted on the vehicle body assembly 1 and is used for rotating and adjusting to spray water at high altitudes. The dust suppression assembly 3 is mounted on the vehicle body assembly 1 and is used to spray water on the ground to suppress dust. The handheld assembly 4 is mounted on the vehicle body assembly 1 and is used for handheld spraying of water.

[0022] Additionally, the spray assembly 2 includes a lateral rotation assembly and a longitudinal rotation assembly. The lateral rotation assembly is mounted on the vehicle body assembly 1, and the longitudinal rotation assembly is mounted on the lateral rotation assembly. The lateral rotation assembly includes a mounting bracket 201, a rotating column 202, a connecting pipe 203, two pulleys 204, two discs 205, four winding rods 206, a rectangular plate 207, a cylinder 208, a motor 209, a winding reel 210, a hose 211, and a water pump 212. The mounting bracket 201 is mounted on the vehicle body assembly 1, and the rotating column 202 is mounted on the vehicle body assembly 1. The top end of the rotating column 202 is fixedly connected to the bottom of the mounting bracket 201, and the connecting pipe 203 is fixedly mounted on the rotating column 202. The two pulleys... 204 are all disposed within the vehicle body assembly 1. The corresponding pulley 204 is fixedly connected to the bottom end of the rotating column 202. Two discs 205 are all disposed within the vehicle body assembly 1. The corresponding disc 205 is fixedly connected to the bottom of the corresponding pulley 204. Four winding rods 206 are respectively fixedly installed between two discs 205. A rectangular plate 207 is disposed within the vehicle body assembly 1. A cylinder 208 is rotatably mounted on the rectangular plate 207. The top end of the cylinder 208 is fixedly connected to the corresponding disc 205. A motor 209 is fixedly installed at the bottom of the rectangular plate 207. The output shaft of the motor 209 is fixedly connected to the cylinder 208. A take-up reel 210 is disposed within the vehicle body assembly 1. The corresponding pulley 204 is fixedly connected to the bottom end of the rotating column 202. The 04 is fixedly sleeved on the take-up reel 210. The hose 211 is wound around the take-up reel 210, and one end of the hose 211 is fixedly connected to the connecting pipe 203. The water pump 212 is installed inside the vehicle body assembly 1. One end of the hose 211 is fixedly connected to the water pump 212. More specifically, when the water pump 212 is started, the water pump 212 draws water from the water tank 104. The water enters the hose 211 through the water pump 212. The hose 211 injects the water into the connecting pipe 203. The connecting pipe 203 guides the water into the high-pressure mist cannon 214. The high-pressure mist cannon 214 atomizes the water and sprays it into the air. At this time, the motor 209 is started. The motor 209 drives the cylinder 208 to rotate. The cylinder 208 drives the disc 205 and the winding rod to rotate. Rotation of disc 206 drives pulley 204, which in turn drives belt drive to rotate. Pulley 204, via a transmission belt, drives take-up pulley 210. The rotation of take-up pulley 210 causes hose 211 to rotate and unwind. Simultaneously, pulley 204 drives rotating column 202, which in turn drives mounting bracket 201 and high-pressure mist cannon 214 to rotate laterally, adjusting the spray direction. The take-up pulley 210, in conjunction with winding rod 206, winds and unwinds hose 211, preventing stretching and deformation that could clog the water supply when adjusting the spray direction. Motor 215 is then activated, driving connecting rod 213 to rotate. The rotation of connecting rod 213, in turn, causes high-pressure mist cannon 214 to rotate longitudinally.Adjusting the spray angle allows for free adjustment of the spray angle and direction, preventing pulling on the hose 211 during adjustment and thus avoiding deformation that could clog the water supply.

[0023] In addition, the longitudinal rotation assembly includes two connecting rods 213, a high-pressure fog cannon 214, and a second motor 215. Both connecting rods 213 are rotatably mounted on the mounting frame 201. The high-pressure fog cannon 214 is fixedly mounted between the two connecting rods 213. The second motor 215 is fixedly mounted on one side of the outer wall of the mounting frame 201. The output end of the second motor 215 is fixedly connected to one end of the corresponding connecting rod 213. One end of the connecting pipe 203 is fixedly connected to the high-pressure fog cannon 214.

[0024] like Figure 1 As shown, the vehicle body assembly 1 includes a mobile vehicle 101, two sweeping brushes 102, a mounting box 103, and a water tank 104. Both sweeping brushes 102 are mounted on the mobile vehicle 101. The mounting box 103 is fixedly mounted on the mobile vehicle 101. The water tank 104 is fixedly mounted on the bottom inner wall of the mounting box 103. The rotating column 202 is rotatably mounted on the mounting box 103. The rectangular plate 207 is fixedly mounted between the mounting box 103 and the water tank 104. The winding reel... 210 is rotatably installed between the mounting box 103 and the water tank 104. The water pump 212 is fixedly installed on the top of the water tank 104. More specifically, the staff enters the mobile vehicle 101 and starts it. The mobile vehicle 101 is driven on the roads or river embankments around the river. The sweeping brush 102 is turned on and the ground is swept by the rotation of the sweeping brush 102. Large particles of dust, garbage and fallen leaves on the road are swept and concentrated. It has the advantages of mobile driving and cleaning and maintenance of roads and river embankments around the river.

[0025] like Figure 1As shown, in some embodiments, the dust suppression component 3 includes a fixing frame 301, an injection pipe 302, a horizontal pipe 303, a nozzle 304, an auxiliary frame 305, a second water pump 306, and a solenoid three-way valve 307. The fixing frame 301 is fixedly installed on one outer wall of the mounting box 103, the injection pipe 302 is fixedly installed on the mounting box 103, the horizontal pipe 303 is fixedly installed on the fixing frame 301, the nozzles 304 are evenly distributed on the horizontal pipe 303, the auxiliary frame 305 is fixedly installed on one outer wall of the mounting box 103, and the auxiliary frame 305 is fixedly connected to the horizontal pipe 303. The second water pump 306 is fixedly installed at the bottom of the mounting box 103, and the solenoid three-way valve 307 is fixedly installed on one side of the mounting box 103. On the inner wall, the second water pump 306 is connected to the electromagnetic three-way valve 307 via a water pipe. The electromagnetic three-way valve 307 is also connected to the injection pipe 302 via a water pipe. More specifically, when the second water pump 306 is started, it draws water from the water tank 104. When the electromagnetic three-way valve 307 is started, it opens the passage, allowing the second water pump 306 to inject water into the electromagnetic three-way valve 307 through the water pipe. The electromagnetic three-way valve 307 then guides the water into the injection pipe 302 through the water pipe. The injection pipe 302 then discharges the water into the horizontal pipe 303. The water gathers in the horizontal pipe 303 and is sprayed outward through the nozzle 304 to moisten and reduce dust on the ground. This method has the advantages of spraying water on the ground to reduce dust while driving and maintaining roads and dams around rivers.

[0026] In some embodiments, the fixing frame 301 is arranged in a Z-shape, and the nozzles 304 at both ends of the horizontal tube 303 are arranged in a downward tilting position.

[0027] like Figure 1 As shown, in some embodiments, the handheld assembly 4 includes a placement frame 401, a spray gun 402, and a mounting tube 403. The placement frame 401 is fixedly installed on one outer wall of the mounting box 103. The spray gun 402 is placed on the placement frame 401. The mounting tube 403 is fixedly installed on the spray gun 402. The mounting tube 403 is connected to the solenoid three-way valve 307.

[0028] Working principle:

[0029] Step 1: Mobile sweeping. Staff members enter the mobile vehicle 101 and start it. They drive the mobile vehicle 101 around the river or on the riverbank, turn on the sweeping brush 102, and use the rotating sweeping brush 102 to sweep the ground, collecting large dust particles, garbage and fallen leaves on the road.

[0030] Step Two: High-altitude spraying. Start water pump 212. Water pump 212 draws water from water tank 104. The water flows through water pump 212 into hose 211, which in turn injects the water into connecting pipe 203. Connecting pipe 203 then guides the water into high-pressure mist cannon 214, which atomizes the water and sprays it into the air. At this time, start motor 209. Motor 209 drives cylinder 208 to rotate, which in turn drives disc 205 and winding rod 206 to rotate. Disc 205 drives pulley 204 to rotate, which in turn drives the winding wheel 21 via a transmission belt. The system rotates, and the take-up wheel 210 rotates, causing the hose 211 to rotate and unrotate. The pulley 204 rotates, causing the rotating column 202 to rotate. The rotating column 202 causes the mounting bracket 201 and the high-pressure mist cannon 214 to rotate laterally to adjust the spray direction. The take-up wheel 210 and the winding rod 206 work together to wind and unwind the hose 211 to prevent the hose 211 from being stretched and deformed when adjusting the spray direction, which could cause the water to be blocked. The motor 215 is started, and the motor 215 drives the connecting rod 213 to rotate. When the connecting rod 213 rotates, it drives the high-pressure mist cannon 214 to rotate longitudinally to adjust the spray angle.

[0031] Step 3: Ground spraying. Start water pump 2 306. Water pump 2 306 draws water from water tank 104. Start solenoid three-way valve 307. Solenoid three-way valve 307 opens the passage. Water pump 2 306 injects water into solenoid three-way valve 307 through water pipe. Solenoid three-way valve 307 guides water into injection pipe 302 through water pipe. Injection pipe 302 discharges water into horizontal pipe 303. Water gathers in horizontal pipe 303 and is sprayed outward through nozzle 304 to moisten and suppress dust on the ground.

[0032] Step 4: Handheld spraying. Activate the solenoid three-way valve 307. The solenoid three-way valve 307 changes the passage, redirecting the original passage to the injection pipe 302 to the installation pipe 403. At this time, the water pumped by the second water pump 306 is injected into the installation pipe 403 through the solenoid three-way valve 307. The operator can then remove the spray gun 402 from the mounting bracket 401 and hold it in their hand for handheld spraying.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A novel river environment maintenance machine, characterized in that: It includes a vehicle body assembly, a spray assembly, a dust suppression assembly, and a handheld assembly. The spray assembly is mounted on the vehicle body assembly and is used for rotating and adjusting to spray water at high altitudes. The dust suppression assembly is mounted on the vehicle body assembly and is used to spray water on the ground to suppress dust. The handheld assembly is mounted on the vehicle body assembly and is used for handheld spraying of water.

2. The novel river environment maintenance machine according to claim 1, characterized in that: The spray assembly includes a lateral rotation assembly and a longitudinal rotation assembly. The lateral rotation assembly is mounted on the vehicle body assembly, and the longitudinal rotation assembly is mounted on the lateral rotation assembly. The lateral rotation assembly includes a mounting bracket, a rotating column, a connecting pipe, two pulleys, two discs, four winding rods, a rectangular plate, a cylinder, a motor, a take-up reel, a hose, and a water pump. The mounting bracket is mounted on the vehicle body assembly, and the rotating column is mounted on the vehicle body assembly. The top of the rotating column is fixedly connected to the bottom of the mounting bracket, and the connecting pipe is fixedly mounted on the rotating column. Both pulleys are located inside the vehicle body assembly, and the corresponding pulleys are fixedly connected to the bottom of the rotating column. All discs are housed within the vehicle body assembly. The bottom of each disc is fixedly connected to the corresponding pulley. Four winding rods are fixedly installed between two discs. A rectangular plate is housed within the vehicle body assembly. A cylinder is rotatably mounted on the rectangular plate. The top of the cylinder is fixedly connected to the corresponding disc. A motor is fixedly installed at the bottom of the rectangular plate. The output shaft of the motor is fixedly connected to the cylinder. A take-up reel is housed within the vehicle body assembly. The corresponding pulley is fixedly sleeved on the take-up reel. A hose is wound around the take-up reel. One end of the hose is fixedly connected to a connecting pipe. A water pump is housed within the vehicle body assembly. One end of the hose is fixedly connected to the water pump.

3. The novel river environment maintenance machine according to claim 2, characterized in that: The longitudinal rotation assembly includes two connecting rods, a high-pressure fog cannon, and a second motor. Both connecting rods are rotatably mounted on the mounting frame. The high-pressure fog cannon is fixedly mounted between the two connecting rods. The second motor is fixedly mounted on one side of the outer wall of the mounting frame. The output end of the second motor is fixedly connected to one end of the corresponding connecting rod. One end of the connecting pipe is fixedly connected to the high-pressure fog cannon.

4. The novel river environment maintenance machine according to claim 2, characterized in that: The vehicle assembly includes a mobile vehicle, two sweeping brushes, a mounting box, and a water tank. Both sweeping brushes are mounted on the mobile vehicle. The mounting box is fixedly mounted on the mobile vehicle. The water tank is fixedly mounted on the bottom inner wall of the mounting box. The rotating column is rotatably mounted on the mounting box. The rectangular plate is fixedly mounted between the mounting box and the water tank. The winding wheel is rotatably mounted between the mounting box and the water tank. The water pump is fixedly mounted on the top of the water tank.

5. The novel river environment maintenance machine according to claim 4, characterized in that: The dust suppression component includes a fixing frame, a liquid injection pipe, a horizontal pipe, spray nozzles, an auxiliary frame, a second water pump and an electromagnetic three-way valve. The fixing frame is fixedly installed on the outer wall of one side of the installation box. The liquid injection pipe is fixedly installed on the installation box. The horizontal pipe is fixedly installed on the fixing frame. The spray nozzles are evenly distributed on the horizontal pipe. The auxiliary frame is fixedly installed on the outer wall of one side of the installation box. The auxiliary frame is fixedly connected to the horizontal pipe. The second water pump is fixedly installed at the bottom of the installation box. The electromagnetic three-way valve is fixedly installed on the inner wall of one side of the installation box. The second water pump and the electromagnetic three-way valve are connected by a water pipe. The electromagnetic three-way valve and the liquid injection pipe are connected by a water pipe.

6. The novel river environment maintenance machine according to claim 5, characterized in that: The fixing frame is arranged in a shape like the Chinese character 'ji'. The spray nozzles at the left and right ends of the horizontal pipe are both arranged in a downward inclined shape.

7. The novel river environment maintenance machine according to claim 4, characterized in that: The handheld component includes a placement rack, a spray gun and an installation pipe. The placement rack is fixedly installed on the outer wall of one side of the installation box. The spray gun is placed on the placement rack. The installation pipe is fixedly installed on the spray gun. The installation pipe is connected to the electromagnetic three-way valve.

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