High pressure water blast cleaning device

Abstract

The utility model discloses a high pressure water sand blasting cleaning device, including mobile chassis and high pressure water sand blasting mechanism and waste recovery mechanism, high pressure water sand blasting mechanism includes sand jar, high pressure water injection mechanism, three -way spray head and splash guard, and high pressure water injection mechanism includes high pressure pump, water tank and high pressure spray gun, and the output of high pressure spray gun is connected with one input passway of three -way spray head, and the input passway of three -way spray head is connected with the bottom end of sand jar, and the injection port of three -way spray head is inserted to the inside of splash guard, and is connected with splash guard fixed mounting, and the top of splash guard is equipped with air inlet, and the bottom is equipped with waste recovery mouth, and waste recovery mechanism includes negative pressure suction mechanism and waste tank, and the input of negative pressure suction pump of negative pressure suction mechanism is connected with the waste recovery mouth of splash guard, and the output is connected with waste tank. The utility model can solve the problem of the low removal efficiency and the high cost of waste recovery and cleaning of the existing railway equipment paint surface removal device during operation.

Description

Technical Field

[0001] This utility model relates to a cleaning device for cleaning the painted surface of railway equipment, specifically a high-pressure water jet cleaning device for some maintenance processes of railway equipment, belonging to the technical field of railway equipment process devices. Background Technology

[0002] In railway equipment, some maintenance procedures for locomotives, rolling stock, and self-propelled equipment require the removal of all paint and putty from the entire vehicle. Certain critical parts also require flaw detection after paint or rust removal, followed by repainting. Currently, the railway industry typically uses manual hammering or grinding to remove paint, putty, and rust. This traditional manual method is not only inefficient and prolongs maintenance downtime, but also causes high labor intensity for operators and environmental pollution. Existing high-pressure cleaning equipment can remove oil and rust, but it cannot remove paint and putty, and lacks protective and recovery devices, making it only suitable for use in open areas or dedicated cleaning rooms. Therefore, there is an urgent need to develop a high-efficiency, highly flexible, and recyclable paint removal device for railway equipment to reduce maintenance downtime and improve flaw detection and paint quality. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a high-pressure water jet cleaning device, which can solve the problems of low cleaning efficiency and high waste recycling and cleaning costs of existing railway equipment paint removal devices during operation.

[0004] To achieve the above objectives, this high-pressure water blasting cleaning device includes a mobile chassis and a high-pressure water blasting mechanism and a waste recycling mechanism mounted on the mobile chassis. The high-pressure water blasting mechanism includes a sand tank, a high-pressure water jetting mechanism, a three-way nozzle, and a splash guard. The high-pressure water jetting mechanism includes a high-pressure pump with a power source. The pressure input end of the high-pressure pump is connected to the water tank through a water supply pipeline. The pressure output end of the high-pressure pump is connected to the input end of the high-pressure spray gun through a water supply pipeline. The output end of the high-pressure spray gun is connected to one input passage of the three-way nozzle. The other input passage of the three-way nozzle is connected to the bottom end of the sand tank through a sand supply pipeline. The spray nozzle of the three-way nozzle extends into the interior of the splash guard and is fixedly installed and connected to the splash guard. The side of the splash guard corresponding to the spray nozzle of the three-way nozzle is an open structure. The top of the splash guard is provided with an air inlet and the bottom is provided with a waste material recovery port. The waste recycling mechanism includes a negative pressure suction mechanism and a waste bin. The negative pressure suction mechanism includes a negative pressure suction pump. The input end of the negative pressure suction pump is connected to the waste recycling port of the splash guard through a waste conveying pipeline, and the output end of the negative pressure suction pump is connected to the waste bin through a waste conveying pipeline.

[0005] As a further improvement of this utility model, the high-pressure water sandblasting cleaning device is also equipped with an electrical control box including a controller, which is electrically connected to the power source and the negative pressure suction pump of the negative pressure suction mechanism.

[0006] As a further improvement of this utility model, a robotic arm electrically connected to the controller is provided on the mobile chassis, and a high-pressure spray gun is installed on the robotic arm.

[0007] As a further improvement of this utility model, the splash guard is provided with an elastic sealing strip or sealing plate on one side of the edge of the nozzle corresponding to the spray port of the three-way nozzle.

[0008] As a further improvement of this utility model, a one-way air inlet valve is provided on the air inlet at the top of the splash guard.

[0009] As a further improvement of this utility model, the bottom of the splash guard is a conical material guiding structure that is larger at the top and smaller at the bottom.

[0010] As a further improvement of this utility model, the bottom of the sand jar is a conical material guiding structure that is larger at the top and smaller at the bottom.

[0011] As a further improvement of this utility model, the height of the bottom of the sand tank from the mobile chassis is greater than the working height of the high-pressure spray gun.

[0012] As a preferred embodiment of this utility model, the high-pressure pump is a high-pressure plunger pump.

[0013] As a preferred embodiment of this utility model, the water supply pipeline is a high-pressure water supply hose, and the sand supply pipeline is a wear-resistant hose.

[0014] Compared with existing technologies, when using this high-pressure water jet cleaning device to remove paint, putty, and rust from railway locomotives or self-propelled equipment, the entire device can be moved to the work site via a mobile chassis. After the splash guard is placed firmly against the work surface with the side corresponding to the nozzle of the three-way nozzle, the negative pressure suction pump of the power source and negative pressure suction mechanism is started. The water in the tank is pressurized by the high-pressure pump to form a high-speed water jet. The high-speed water jet enters the three-way nozzle through the high-pressure spray gun and is ejected from the nozzle. Due to the high-speed water jet, the inlet and outlet of the three-way nozzle are separated by the high-speed water jet. The jet action creates negative pressure, and the fine abrasive in the sand tank is drawn into the three-way nozzle under the negative pressure, where it mixes with the high-speed water jet to form a mixed sand jet. This mixed sand jet can be used to impact and clean the working surface. The backsplash generated by the mixed sand jet impacting the working surface can be blocked by the splash shield and then sucked into the waste box by the negative pressure suction mechanism through the waste recovery port. This effectively protects the working environment while realizing the recovery and cleaning of waste during the operation, and can solve the problems of low cleaning efficiency and high waste recovery and cleaning costs of existing railway equipment paint removal devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the three-way nozzle and splash guard of this utility model.

[0016] In the diagram: 1. Mobile chassis, 2. Sand tank, 3. High-pressure water jet mechanism, 31. Power source, 32. Gearbox, 33. High-pressure pump, 34. Water tank, 35. High-pressure spray gun, 4. Three-way nozzle, 5. Splash shield, 6. Negative pressure suction mechanism, 7. Waste bin, 8. Electrical control box. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, this high-pressure water blasting cleaning device includes a mobile chassis 1 and a high-pressure water blasting mechanism and a waste recycling mechanism installed on the mobile chassis 1.

[0019] The high-pressure water blasting mechanism includes a sand tank 2, a high-pressure water jetting mechanism 3, a three-way nozzle 4, and a splash guard 5. The high-pressure water jetting mechanism 3 includes a high-pressure pump 33 with a power source 31, which can be an engine or an electric motor. The power source 31 is connected to the high-pressure pump 33 via a gearbox 32. The high-pressure pump 33 is preferably a high-pressure plunger pump with outstanding high-pressure capacity, excellent efficiency, and flexible flow adjustment. The pressure input end of the high-pressure pump 33 is connected to a water tank 34 via a water supply pipeline, and the pressure output end of the high-pressure pump 33 is connected to the high-pressure jetting mechanism 5 via a water supply pipeline. The input end of the gun 35 is connected to a high-pressure water hose for easy connection and operation. The output end of the high-pressure spray gun 35 is connected to one input passage of the three-way nozzle 4. The other input passage of the three-way nozzle 4 is connected to the bottom of the sand tank 2 through a sand conveying pipe. The sand tank 2 contains fine abrasive sand. For easy connection and operation, a wear-resistant hose is preferred for the sand conveying pipe. The bottom of the sand tank 2 can be designed as a tapered material guiding structure that is wider at the top and narrower at the bottom. The height of the bottom of the sand tank 2 from the moving base 1 is greater than the working height of the high-pressure spray gun 35. Figure 2 As shown, the nozzle of the three-way nozzle 4 extends into the interior of the splash guard 5 and is fixedly connected to the splash guard 5. The side of the splash guard 5 corresponding to the nozzle of the three-way nozzle 4 is an open structure. The top of the splash guard 5 is provided with an air inlet and the bottom is provided with a waste recycling port.

[0020] The waste recycling mechanism includes a negative pressure suction mechanism 6 and a waste bin 7. The negative pressure suction mechanism 6 includes a negative pressure suction pump. The input end of the negative pressure suction pump is connected to the waste recycling port of the splash guard 5 through a waste conveying pipeline, and the output end of the negative pressure suction pump is connected to the waste bin 7 through a waste conveying pipeline.

[0021] When using this high-pressure water jet cleaning device to remove paint, putty, and rust from railway locomotives, rolling stock, or self-propelled equipment, the high-pressure spray gun 35 can be positioned on the mobile chassis 1 for fixed-point operation, or the operator can hold the high-pressure spray gun 35 for mobile operation. During operation, the entire device can be moved to the work site via the mobile chassis 1. After the side of the splash guard 5 corresponding to the nozzle of the three-way nozzle 4 is pressed tightly against the work surface, the negative pressure suction pump of the power source 31 and the negative pressure suction mechanism 6 is started. The water in the water tank 34 is pressurized by the high-pressure pump 33 to form a high-speed water jet. The high-speed water jet enters the three-way nozzle 4 through the high-pressure spray gun 35 and is sprayed out through the nozzle of the three-way nozzle 4. Due to the action of the high-speed water jet, a negative pressure is formed between the water inlet and the nozzle of the three-way nozzle 4. The fine abrasive in the sand tank 2 is sucked into the three-way nozzle 4 under the action of the negative pressure and mixes with the high-speed water jet to form a mixed sand jet. The mixed sand jet is used to impact and clean the work surface. The backsplash generated by the sand jet impacting the work surface can be blocked by the splash shield 5 and sucked into the waste bin 7 by the negative pressure suction mechanism 6 through the waste recycling port. This can effectively protect the work scene while realizing the recycling and cleaning of waste during the operation.

[0022] To achieve automation, as a further improvement of this utility model, the high-pressure water blasting cleaning device can also be equipped with an electrical control box 8 including a controller. The controller can be electrically connected to the power source 31 and the negative pressure suction pump of the negative pressure suction mechanism 6 to achieve automatic control start-up. Furthermore, a robotic arm electrically connected to the controller can be installed on the mobile chassis 1, and the high-pressure spray gun 35 can be installed on the robotic arm to achieve automated and precise control.

[0023] To achieve a better sealing effect during operation, as a further improvement of this utility model, the edge of the splash guard 5 corresponding to the spray nozzle of the three-way nozzle 4 is provided with an elastic sealing strip or sealing plate.

[0024] To prevent the backsplash generated by the sand jet impacting the working surface from splashing out from the air inlet at the top of the splash shield 5 during operation, as a further improvement of this utility model, a one-way air inlet valve is provided on the air inlet at the top of the splash shield 5.

[0025] To facilitate waste recycling, as a further improvement of this utility model, the bottom of the splash guard 5 is a conical material guiding structure that is larger at the top and smaller at the bottom. After the backsplash generated by the sand jet impacting the working surface is blocked by the splash guard 5, it can slide down into the waste recycling port of the splash guard 5 under its own gravity.

Claims

1. A high-pressure water jet sandblasting cleaning device, characterized in that, Includes a mobile chassis (1) and a high-pressure water blasting mechanism and a waste recycling mechanism mounted on the mobile chassis (1); The high-pressure water blasting mechanism includes a sand tank (2), a high-pressure water jetting mechanism (3), a three-way nozzle (4), and a splash guard (5). The high-pressure water jetting mechanism (3) includes a high-pressure pump (33) with a power source (31). The pressure input end of the high-pressure pump (33) is connected to the water tank (34) through a water supply pipeline. The pressure output end of the high-pressure pump (33) is connected to the input end of the high-pressure spray gun (35) through a water supply pipeline. The output end of the high-pressure spray gun (35) is connected to one input passage of the three-way nozzle (4). The other input passage of the three-way nozzle (4) is connected to the bottom end of the sand tank (2) through a sand supply pipeline. The spray nozzle of the three-way nozzle (4) extends into the interior of the splash guard (5) and is fixedly installed and connected to the splash guard (5). The side of the splash guard (5) corresponding to the spray nozzle of the three-way nozzle (4) is an open structure. The top of the splash guard (5) is provided with an air inlet and the bottom is provided with a waste recycling port. The waste recycling mechanism includes a negative pressure suction mechanism (6) and a waste bin (7). The negative pressure suction mechanism (6) includes a negative pressure suction pump. The input end of the negative pressure suction pump is connected to the waste recycling port of the splash guard (5) through the waste conveying pipeline. The output end of the negative pressure suction pump is connected to the waste bin (7) through the waste conveying pipeline.

2. The high-pressure water jet cleaning device according to claim 1, characterized in that, The high-pressure water sandblasting cleaning device is also equipped with an electrical control box (8) including a controller, which is electrically connected to the power source (31) and the negative pressure suction pump of the negative pressure suction mechanism (6).

3. The high-pressure water jet cleaning device according to claim 2, characterized in that, A robotic arm electrically connected to the controller is mounted on the mobile chassis (1), and a high-pressure spray gun (35) is mounted on the robotic arm.

4. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The splash guard (5) is provided with an elastic sealing strip or sealing plate on one side edge of the spray nozzle (4) of the three-way nozzle.

5. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The air inlet at the top of the splash guard (5) is equipped with a one-way air inlet valve.

6. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The bottom of the splash guard (5) is a cone-shaped material guiding structure that is larger at the top and smaller at the bottom.

7. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The bottom of the sand jar (2) is a cone-shaped material guiding structure that is larger at the top and smaller at the bottom.

8. The high-pressure water jet cleaning device according to claim 7, characterized in that, The height of the bottom of the sand tank (2) from the mobile chassis (1) is greater than the working height of the high-pressure spray gun (35).

9. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The high-pressure pump (33) is a high-pressure plunger pump.

10. The high-pressure water jet cleaning device according to claim 1, 2, or 3, characterized in that, The water supply pipeline is a high-pressure water supply hose, and the sand supply pipeline is a wear-resistant hose.

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