A high-pressure water jet device with a cutting head

Abstract

A high-pressure water jet device with a cutting head is installed at the front end of a high-pressure water cleaning vehicle, including a high-pressure water jet cleaning machine and a cutting head remover. The high-pressure water jet cleaning machine is connected to the front side of the chassis of the high-pressure water cleaning vehicle through a fixing frame, and the cutting head remover is connected to the front side of the high-pressure water jet cleaning machine through a connecting frame. The water inlet of the high-pressure water jet cleaning machine is connected to the water outlet of the high-pressure water supply system on the high-pressure water cleaning vehicle. The invention has a scientific design, and the cutting edge and the high-pressure water jet are combined to perform a marking cleaning operation, and the marking cleaning effect is good and the operation efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure water jets, and in particular to a high-pressure water jet device with a cutting head. Background Art

[0002] In recent years, with the rapid development of my country's economy, the number of domestic motor vehicles has increased year by year, reaching 360 million by 2020. At the same time, highway construction has also grown rapidly, reaching 5.1 million kilometers. At the same time, the requirements for road markings during road construction have also kept pace with the times. Not only are the markings required to have good night-time reflective effects, but they must also have high wear resistance. In addition to scraping and spraying, the types of markings have also developed into various forms such as oscillating lines and dotted lines. In addition to the basic characteristics of markings, these types of markings also have rainy night reflective properties and anti-slip properties.

[0003] But what comes with it is that when the road markings need to be reconstructed or changed, it is extremely difficult to remove them. At this time, people often use knives, axes, or even fire, which consumes a lot of energy but the effect is not obvious. Later, mechanical grinding was developed to remove the markings, but this method has extremely serious noise and dust pollution, and the markings after removal are either not removed cleanly or damage the road surface, and the effect is not satisfactory.

[0004] With the advancement of science and technology, a high-pressure water jet technology was introduced from abroad to China and was soon applied to the road marking removal industry. The principle of this technology is that a plunger-type high-pressure water pump pressurizes water and sprays it out through a nozzle to remove the road marking paint. This method does not need to consider the flatness of the road surface, and can clean the paint mixed between the stones on the road surface.

[0005] However, the disadvantage of high-pressure water jet technology is also obvious, that is, the work efficiency is low. In order to achieve a good cleaning effect, the high-pressure water jet needs to stay above the marking for a sufficient time to clean the marking. Especially when removing oscillating lines, dotted lines and other types of markings, due to the thickness of the markings and irregular shapes, it is more difficult to use high-pressure water jets to remove them, and the work efficiency is lower.

[0006] Therefore, how to improve the operating efficiency of water jet technology in removing various road markings has become a major problem restricting the promotion of this technology in the domestic road marking removal industry. Summary of the invention

[0007] The purpose of the present invention is to provide a high-pressure water jet device with a cutting head. The present invention is scientifically designed, and the cutting edge and the high-pressure water jet are combined to perform a marking cleaning operation, so the marking cleaning effect is good and the operation efficiency is high.

[0008] To achieve the above object, the present invention adopts the following technical solution:

[0009] A high-pressure water jet device with a cutting head is installed at the front end of a high-pressure water cleaning vehicle, comprising a high-pressure water jet cleaning machine and a cutting head remover. The high-pressure water jet cleaning machine is connected to the front side of the chassis of the high-pressure water cleaning vehicle through a fixing frame, and the cutting head remover is connected to the front side of the high-pressure water jet cleaning machine through a connecting frame. The water inlet of the high-pressure water jet cleaning machine is connected to the water outlet of a high-pressure water supply system on the high-pressure water cleaning vehicle.

[0010] The cutting head cleaning machine includes a casing, a cutting shaft and a cutting motor. The lower side of the casing is open, and the cutting shaft is horizontally arranged in the casing along the left and right directions. The two ends of the cutting shaft are rotatably mounted on the left and right side panels of the casing through bearing seats. The cutting motor is fixedly mounted on the upper part of the casing, and the power shaft of the cutting motor is transmission-connected to the cutting shaft through a transmission device. The four sides of the lower port of the casing are fixedly connected with rubber baffles by screws, and the lower side of the rubber baffle is flush with the lower side of the cutting shaft. A recovery pipe located at the front side of the casing and tilted with the front higher and the rear lower is installed in the middle of the front side panel of the casing. A fan is arranged on the chassis of the high-pressure water cleaning vehicle, and the front air outlet of the recovery pipe is connected to the exhaust port of the fan through a suction hose. Lifting support mechanisms are arranged on the left side of the left side panel and the right side of the right side panel of the casing. A vibrator is fixedly mounted on the upper part of the casing, and a first square steel tilted with the front lower and the rear higher is fixedly connected to the rear side panel of the casing.

[0011] The cutting shaft includes a rotary shaft, both ends of which are rotatably mounted on the left and right side plates of the casing through bearing seats. The power shaft of the cutting motor is connected to the rotary shaft through a transmission device. The external fixed sleeve of the rotary shaft is provided with a rotary tool seat. The outer surface of the rotary tool seat is evenly distributed with a number of blade seats along the axial spiral. The end face of the blade seat is provided with a cutting edge. The cutting edge is made of cemented carbide. The lower side of the outer circumference of the rotary tool seat is flush with the lower port of the casing, and the lower side of the rubber baffle is flush with the lower side of the lower blade seat.

[0012] The two lifting support mechanisms have the same structure and are symmetrical on the left and right. The lifting support mechanism on the left includes an adjustable telescopic rod with a Hall sensor, a wheel frame and a V-shaped swing arm. The adjustable telescopic rod is arranged along the front-to-back direction and is tilted higher in the front and lower in the back. The piston rod of the adjustable telescopic rod extends backward, and the front end of the cylinder body of the adjustable telescopic rod is hinged to the front upper corner of the left side surface of the left side plate of the casing. The wheel frame is horizontally arranged along the front-to-back direction at the lower left part of the casing. Two supporting wheels arranged at front-to-back intervals and rollingly supported on the ground are rotatably installed on the wheel frame. The front end of the wheel frame is hinged to the front lower corner of the left side surface of the left side plate of the casing. The V-angle opening direction of the V-shaped swing arm is arranged backward, and the corner of the V-shaped swing arm is hinged to the rear lower corner of the left side surface of the left side plate of the casing. The rear end of the piston rod of the adjustable telescopic rod is hinged to the upper part of the upper side plate of the V-shaped swing arm, and the rear end of the wheel frame is hinged to the lower part of the lower side plate of the V-shaped swing arm.

[0013] The high-pressure water jet cleaning machine includes a base, a diverter plate and a hydraulic motor. The upper front side of the base is hinged with a horizontal beam arranged in the left and right directions. The left and right ends of the beam and the left and right rear corners of the base are fixedly connected with lifting brackets. The lower end of the lifting bracket is equipped with a universal wheel located below the base and supported on the ground for rolling. The diverter plate is a cross-shaped structure. The diverter plate is horizontally arranged below the base. A protective cover with an open bottom is fixedly mounted on the outer circumference of the diverter plate. A brush is arranged on the lower edge of the protective cover. A water cavity is arranged inside the diverter plate. A high-pressure water swivel joint is fixedly arranged at the top center of the diverter plate. The high-pressure water rotary joint is rotatably installed on the base, the lower end of the high-pressure water rotary joint is connected to the water chamber, the upper end of the high-pressure water rotary joint is connected to the water outlet of the high-pressure water supply system, and a plurality of high-pressure nozzles connected to the water chamber are evenly arranged at the bottom of the diverter plate. The upper rear side of the base is fixedly connected to two symmetrically arranged connecting supports through a plurality of first fastening bolts, and the upper parts of the two connecting supports are fixedly connected to a connecting shaft horizontally arranged in the left and right directions through a plurality of second fastening bolts. The two ends of the connecting shaft are hinged to the front end of the fixing frame, and the power shaft of the hydraulic motor is connected to the high-pressure water rotary joint through transmission.

[0014] The connecting frame includes a second square steel, which is horizontally arranged along the front-to-back direction. The rear end of the second square steel is fixedly connected to the front side of the crossbeam, the front end of the second square steel is located directly above the first square steel, and the rear end of the first square steel is fixedly connected to the front end of the second square steel through two reinforcing plates.

[0015] The lifting bracket on the left front side includes a horizontal support plate and a vertical lifting screw. The horizontal support plate is welded to the lower left part of the crossbeam. A threaded through hole is provided on the left side of the horizontal support plate. The vertical lifting screw thread is connected through the threaded through hole. The upper end of the vertical lifting screw passes upward through the threaded through hole and is located above the horizontal support plate. A fastening nut is threadedly connected to the upper side of the vertical lifting screw. The lower side of the fastening nut is tightly pressed against the upper surface of the horizontal support plate. A universal wheel is installed at the lower end of the vertical lifting screw.

[0016] Compared with the prior art, the present invention has outstanding substantive features and remarkable progress. Specifically, when the present invention is in operation, the high-pressure water cleaning vehicle is driven to the operation site, and the high-pressure water jet cleaning machine and the cutting head cleaning machine are lowered along the marking line, so that each supporting wheel and each universal wheel are rollingly supported on the ground, and two adjusting telescopic rods are started at the same time. The adjusting telescopic rods are provided with Hall sensors, and the distance between the housing and the ground can be detected in real time according to the Hall sensors. The piston rods of the two adjusting telescopic rods are synchronously extended and retracted, and the housing can be reacted to by the V-shaped swing arm, so that the housing can be flipped forward and upward, thereby being able to adjust the distance between the cutting axis and the marking line. Make sure that the blade seat on the lower side is always in contact with the marking line, start the cutting motor, and the cutting motor drives the cutting shaft to rotate through the transmission device. The cutting shaft drives the rotary blade seat to rotate, and the cutting edge on the rotary blade seat cuts and removes the marking line. During the operation, the force required for the cutting edge to cut the marking line is very large, and the reaction force on the cutting edge is also very large. However, it is impossible to ensure that sufficient downward pressure can be provided by relying solely on the weight of the cutting head cleaner. Therefore, a vibrator is set on the upper part of the casing. When the vibrator is started, the vibrator can generate a downward pressure of thousands of Newtons, so that the cutting edge can be It has enough force to cut the marking line and maintain stability. When the cutting head cleaner is working, the cutting edge will break the marking line and generate a lot of dust and debris. The dust and debris will gather between the four rubber baffles. If these dust and debris cannot be cleaned in time, it will affect the subsequent high-pressure water jet cleaning effect. Therefore, in this process, the fan is started. The fan extracts and recycles the dust and debris through the suction hose and recovery pipe to avoid secondary pollution. At the same time, the hydraulic motor and high-pressure water supply system are started. The high-pressure water supply system pumps high-pressure water into the water cavity in the diverter plate through the high-pressure water swivel joint, and each high-pressure nozzle is directed to A high-pressure water jet is ejected downward, so that the high-pressure water jet can clean the markings on the road surface. A brush is arranged on the lower edge of the protective cover, which can push the dust and debris remaining after the cutting operation of the cutting head on the front side to both sides before the high-pressure water jet, so as to avoid affecting the operation effect of the high-pressure water jet. The marking cleaning effect is good and the operation efficiency is high. The power shaft of the hydraulic motor drives the high-pressure water swivel joint to rotate, and the high-pressure water swivel joint drives the diverter plate and the protective cover to rotate together. During the rotation process, the various high-pressure nozzles on the diverter plate will rotate continuously, so as to avoid the damage to the road surface caused by the long-term impact of the high-pressure water jet.

[0017] The invention is scientifically designed, and the cutting edge and the high-pressure water jet are combined to perform a marking cleaning operation, so the marking cleaning effect is good and the operation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 The axonometric view of the cutting head cleaning machine of the present invention Figure 1 .

[0020] Figure 3 The axonometric view of the cutting head cleaning machine of the present invention Figure 2 .

[0021] Figure 4 It is a schematic structural diagram of the cutting shaft of the present invention.

[0022] Figure 5 The high pressure water jet cleaning machine of the present invention is Figure 1 .

[0023] Figure 6 The high pressure water jet cleaning machine of the present invention is Figure 2 . DETAILED DESCRIPTION

[0024] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0025] like Figure 1-6 As shown, a high-pressure water jet device with a cutting head is installed at the front end of a high-pressure water cleaning vehicle, including a high-pressure water jet cleaning machine and a cutting head remover. The high-pressure water jet cleaning machine is connected to the front side of the chassis of the high-pressure water cleaning vehicle through a fixing frame 1, and the cutting head remover is connected to the front side of the high-pressure water jet cleaning machine through a connecting frame. The water inlet of the high-pressure water jet cleaning machine is connected to the water outlet of the high-pressure water supply system on the high-pressure water cleaning vehicle.

[0026] The cutting head cleaning machine includes a casing 2, a cutting shaft and a cutting motor 3. The lower side of the casing 2 is open, and the cutting shaft is horizontally arranged in the casing 2 along the left and right directions. The two ends of the cutting shaft are rotatably mounted on the left and right side panels of the casing 2 through bearing seats 4 respectively. The cutting motor 3 is fixedly mounted on the upper part of the casing 2, and the power shaft of the cutting motor 3 is transmission-connected to the cutting shaft through a transmission device 5. The four sides of the lower port of the casing 2 are fixedly connected with a rubber baffle 6 by screws, and the lower side of the rubber baffle 6 is flush with the lower side of the cutting shaft. A recovery pipe 7 located at the front side of the casing 2 and tilted with the front higher and the rear lower is installed in the middle of the front side panel of the casing 2. A fan is arranged on the chassis of the high-pressure water cleaning vehicle, and the front air outlet of the recovery pipe 7 is connected to the exhaust port of the fan through a suction hose. The left side of the left side panel and the right side of the right side panel of the casing 2 are both provided with lifting support mechanisms. A vibrator 8 is fixedly mounted on the upper part of the casing 2, and a first square steel 9 tilted with the front lower and the rear higher is fixedly connected to the rear side panel of the casing 2.

[0027] The cutting shaft includes a rotary shaft 10, the two ends of which are rotatably mounted on the left and right side plates of the housing 2 through a bearing seat 4, respectively. The power shaft of the cutting motor 3 is connected to the rotary shaft 10 through a transmission device 5. The outer fixed sleeve of the rotary shaft 10 is provided with a rotary cutter seat 11, and the outer surface of the rotary cutter seat 11 is evenly distributed with a plurality of blade seats 12 along the axial spiral. The end surface of the blade seat 12 is provided with a cutting edge 13, which is made of cemented carbide. The lower side of the outer circumference of the rotary cutter seat 11 is flush with the lower port of the housing 2, and the lower side of the rubber baffle 6 is flush with the lower side of the lower blade seat 12. The transmission device 5 adopts belt drive or chain drive.

[0028] The two lifting support mechanisms have the same structure and are symmetrical on the left and right. The lifting support mechanism on the left side includes an adjustable telescopic rod 14 with a Hall sensor, a wheel frame 15 and a V-shaped swing arm 16. The adjustable telescopic rod 14 is tilted along the front and rear direction and is higher in the front and lower in the rear. The piston rod of the adjustable telescopic rod 14 extends backward. The front end of the cylinder body of the adjustable telescopic rod 14 is hinged to the front upper corner of the left side surface of the left side plate of the casing 2. The wheel frame 15 is horizontally arranged at the left lower part of the casing 2 along the front and rear direction. Two support wheels 17 arranged at front and rear intervals and rollingly supported on the ground are rotatably installed on the wheel frame 15. The front end of the wheel frame 15 is hinged to the front lower corner of the left side surface of the left side plate of the casing 2. The V-shaped angle opening direction of the V-shaped swing arm 16 is set backward. The corner of the V-shaped swing arm 16 is hinged to the rear lower corner of the left side surface of the left side plate of the casing 2. The rear end of the piston rod of the adjustable telescopic rod 14 is hinged to the upper part of the upper side plate of the V-shaped swing arm 16, and the rear end of the wheel frame 15 is hinged to the lower part of the lower side plate of the V-shaped swing arm 16.

[0029] The high-pressure water jet cleaning machine includes a base 18, a diverter plate 19 and a hydraulic motor 20. The upper front side of the base 18 is hinged with a cross beam 21 arranged horizontally in the left and right directions. The left and right ends of the cross beam 21 and the left and right rear corners of the base 18 are fixedly connected with a lifting bracket. The lower end of the lifting bracket is equipped with a universal wheel 35 located below the base 18 and rollingly supported on the ground. The diverter plate 19 has a cross-shaped structure. The diverter plate 19 is horizontally arranged below the base 18. A protective cover 22 with an open bottom is fixedly sleeved on the outer circumference of the diverter plate 19. A brush 23 is arranged on the lower edge of the protective cover 22. A water cavity is arranged inside the diverter plate 19. A high-pressure water rotating wheel is fixedly arranged at the top center of the diverter plate 19. Joint 24, the high-pressure water rotary joint 24 is rotatably installed on the base 18, the lower end of the high-pressure water rotary joint 24 is connected to the water cavity, the upper end of the high-pressure water rotary joint 24 is connected to the water outlet of the high-pressure water supply system, and a plurality of high-pressure nozzles 25 connected to the water cavity are evenly arranged at the bottom of the diverter plate 19. The upper rear side of the base 18 is fixedly connected to two symmetrically arranged connecting supports 27 through a plurality of first fastening bolts 26, and the upper parts of the two connecting supports 27 are fixedly connected to a connecting shaft 29 horizontally arranged along the left and right directions through a plurality of second fastening bolts 28. The two ends of the connecting shaft 29 are hinged to the front end of the fixed frame 1, and the power shaft of the hydraulic motor 20 is connected to the high-pressure water rotary joint 24 through transmission.

[0030] The connecting frame includes a second square steel 30, which is horizontally arranged along the front-to-back direction. The rear end of the second square steel is fixedly connected to the front side of the crossbeam 21, and the front end of the second square steel 30 is located directly above the first square steel 9. The rear end of the first square steel 9 and the front end of the second square steel are fixedly connected by two reinforcing plates 31.

[0031] The lifting bracket on the left front side includes a horizontal support plate 32 and a vertical lifting screw 33. The horizontal support plate 32 is welded to the lower left part of the cross beam 21. A threaded through hole is provided on the left side of the horizontal support plate 32. The vertical lifting screw 33 is threadedly connected in the threaded through hole. The upper end of the vertical lifting screw 33 passes upward through the threaded through hole and is located above the horizontal support plate 32. A fastening nut 34 is threadedly connected to the upper side of the vertical lifting screw 33. The lower side of the fastening nut 34 is tightly pressed against the upper surface of the horizontal support plate 32. A universal wheel 35 is installed at the lower end of the vertical lifting screw 33.

[0032] The high-pressure water cleaning vehicle is a conventional vehicle in the art, and its specific structure and working principle will not be described in detail.

[0033] When the present invention is in operation, the high-pressure water cleaning vehicle is driven to the operation site, and the high-pressure water jet cleaning machine and the cutting head cleaning machine are lowered along the marking line, so that each supporting wheel 17 and each universal wheel 35 are rollingly supported on the ground, and at the same time, the two adjusting telescopic rods 14 are started, and the adjusting telescopic rods 14 are provided with Hall sensors. According to the Hall sensors, the distance between the housing 2 and the ground can be detected in real time. The piston rods of the two adjusting telescopic rods 14 are synchronously extended and retracted, and the housing 2 is reacted to by the V-shaped swing arm 16, so that the housing 2 can be flipped forward and upward, and then the distance between the cutting axis and the marking line can be adjusted to ensure that the lower blade seat 12 is always in contact with the marking line, and the cutting motor 3 is started. The cutting motor 3 drives the cutting shaft to rotate through the transmission device 5, and the cutting shaft drives the rotary cutter seat 11 to rotate, and the cutting edge 13 on the rotary cutter seat 11 cuts and removes the marking line. Since the force required for the cutting edge 13 to cut the marking line during the operation is very large, the reaction force on the cutting edge 13 is also very large, but it is not possible to ensure that sufficient downward pressure can be provided by relying solely on the weight of the cutting head cleaning machine. Therefore, a vibrator 8 is set on the upper part of the housing 2. When the vibrator 8 is started, the vibrator 8 can generate a downward pressure of several thousand Newtons, so that the cutting edge 13 can have sufficient force to cut the marking line when the cutting head cleaning machine is operating, ensuring When the cutting head cleaning machine is working, the cutting edge 13 will break the marking line and generate a large amount of dust and debris. The dust and debris will gather between the four rubber baffles 6. If the dust and debris cannot be cleaned in time, it will affect the subsequent cleaning effect of the high-pressure water jet. Therefore, in this process, the fan is started, and the fan extracts and recycles the dust and debris through the suction hose and the recovery pipe 7 to avoid secondary pollution. At the same time, the hydraulic motor 20 and the high-pressure water supply system are started. The high-pressure water supply system pumps high-pressure water into the water cavity in the diverter plate 19 through the high-pressure water rotary joint 24, and each high-pressure nozzle 25 sprays a high-pressure water jet downward, from The high-pressure water jet cleans the markings on the road surface. A brush 23 is provided on the lower edge of the protective cover 22. The brush 23 can push the dust and debris remaining after the cutting operation of the cutting head on the front side to both sides before the high-pressure water jet, so as to avoid affecting the operation effect of the high-pressure water jet. The marking cleaning effect is good and the operation efficiency is high. The power shaft of the hydraulic motor 20 drives the high-pressure water rotary joint 24 to rotate, and the high-pressure water rotary joint 24 drives the diverter plate 19 and the protective cover 22 to rotate together. During the rotation process, the various high-pressure nozzles 25 on the diverter plate 19 will rotate continuously, thereby avoiding the damage to the road surface caused by the long-term impact of the high-pressure water jet.

[0034] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A high-pressure water jet device with a cutting head, mounted on the front end of a high-pressure water cleaning vehicle, characterized in that: It includes a high-pressure water jet cleaning machine and a cutting head cleaning machine. The high-pressure water jet cleaning machine is connected to the front side of the chassis of the high-pressure water cleaning vehicle through a fixing frame, and the cutting head cleaning machine is connected to the front side of the high-pressure water jet cleaning machine through a connecting frame. The water inlet of the high-pressure water jet cleaning machine is connected to the water outlet of the high-pressure water supply system on the high-pressure water cleaning vehicle. The cutting head cleaning machine includes a casing, a cutting shaft and a cutting motor. The lower side of the casing is open, and the cutting shaft is horizontally arranged in the casing along the left and right directions. The two ends of the cutting shaft are rotatably mounted on the left and right side panels of the casing through bearing seats, and the cutting motor is fixedly mounted on the upper part of the casing. The power shaft of the cutting motor is connected to the cutting shaft through a transmission device. The four sides of the lower port of the casing are fixedly connected with rubber baffles through screws, and the lower side of the rubber baffle is flush with the lower side of the cutting shaft. A recovery pipe located at the front side of the casing and tilted with the front higher and the rear lower is installed in the middle of the front side panel of the casing. A fan is arranged on the chassis of the high-pressure water cleaning vehicle, and the front air outlet of the recovery pipe is connected to the exhaust port of the fan through a suction hose. The left side of the left side panel and the right side of the right side panel of the casing are both provided with lifting support mechanisms. A vibrator is fixedly mounted on the upper part of the casing, and a first square steel tilted with the front lower and the rear higher is fixedly connected to the rear side panel of the casing. The cutting shaft comprises a rotary shaft, the two ends of which are rotatably mounted on the left and right side plates of the casing through bearing seats, the power shaft of the cutting motor is connected to the rotary shaft through a transmission device, the outer fixed sleeve of the rotary shaft is provided with a rotary knife seat, the outer surface of the rotary knife seat is evenly distributed with a plurality of blade seats along the axial spiral, the end face of the blade seat is provided with a cutting edge, the lower side of the outer circumference of the rotary knife seat is flush with the lower port of the casing, and the lower side of the rubber baffle is flush with the lower side of the lower blade seat; The two lifting support mechanisms have the same structure and are symmetrical on the left and right. The lifting support mechanism on the left includes an adjustable telescopic rod with a Hall sensor, a wheel frame and a V-shaped swing arm. The adjustable telescopic rod is arranged along the front-to-back direction and is tilted higher in the front and lower in the back. The piston rod of the adjustable telescopic rod extends backward, and the front end of the cylinder body of the adjustable telescopic rod is hinged to the front upper corner of the left side surface of the left side plate of the casing. The wheel frame is horizontally arranged along the front-to-back direction at the lower left part of the casing. Two supporting wheels arranged at front-to-back intervals and rollingly supported on the ground are rotatably installed on the wheel frame. The front end of the wheel frame is hinged to the front lower corner of the left side surface of the left side plate of the casing. The V-angle opening direction of the V-shaped swing arm is arranged backward, and the corner of the V-shaped swing arm is hinged to the rear lower corner of the left side surface of the left side plate of the casing. The rear end of the piston rod of the adjustable telescopic rod is hinged to the upper part of the upper side plate of the V-shaped swing arm, and the rear end of the wheel frame is hinged to the lower part of the lower side plate of the V-shaped swing arm.

2. The high-pressure water jet device with a cutting head according to claim 1, characterized in that: The high-pressure water jet cleaning machine includes a base, a diverter plate and a hydraulic motor. The upper front side of the base is hinged with a horizontal beam arranged in the left and right directions. The left and right ends of the beam and the left and right rear corners of the base are fixedly connected with lifting brackets. The lower end of the lifting bracket is equipped with a universal wheel located below the base and supported on the ground for rolling. The diverter plate is a cross-shaped structure. The diverter plate is horizontally arranged below the base. A protective cover with an open bottom is fixedly mounted on the outer circumference of the diverter plate. A brush is arranged on the lower edge of the protective cover. A water cavity is arranged inside the diverter plate. A high-pressure water swivel joint is fixedly arranged at the top center of the diverter plate. The high-pressure water rotary joint is rotatably installed on the base, the lower end of the high-pressure water rotary joint is connected to the water chamber, the upper end of the high-pressure water rotary joint is connected to the water outlet of the high-pressure water supply system, and a plurality of high-pressure nozzles connected to the water chamber are evenly arranged at the bottom of the diverter plate. The upper rear side of the base is fixedly connected to two symmetrically arranged connecting supports through a plurality of first fastening bolts, and the upper parts of the two connecting supports are fixedly connected to a connecting shaft horizontally arranged in the left and right directions through a plurality of second fastening bolts. The two ends of the connecting shaft are hinged to the front end of the fixing frame, and the power shaft of the hydraulic motor is connected to the high-pressure water rotary joint through transmission.

3. The high-pressure water jet device with a cutting head according to claim 2, characterized in that: The connecting frame includes a second square steel, which is horizontally arranged along the front-to-back direction. The rear end of the second square steel is fixedly connected to the front side of the crossbeam, the front end of the second square steel is located directly above the first square steel, and the rear end of the first square steel is fixedly connected to the front end of the second square steel through two reinforcing plates.

4. The high-pressure water jet device with a cutting head according to claim 3, characterized in that: The lifting bracket on the left front side includes a horizontal support plate and a vertical lifting screw. The horizontal support plate is welded to the lower left part of the crossbeam. A threaded through hole is provided on the left side of the horizontal support plate. The vertical lifting screw thread is connected through the threaded through hole. The upper end of the vertical lifting screw passes upward through the threaded through hole and is located above the horizontal support plate. A fastening nut is threadedly connected to the upper side of the vertical lifting screw. The lower side of the fastening nut is tightly pressed against the upper surface of the horizontal support plate. A universal wheel is installed at the lower end of the vertical lifting screw.

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