Road surface cutting and crushing device for road construction and maintenance

Abstract

The utility model discloses a road surface cutting and crushing device for road construction and maintenance, which relates to the field of road construction and comprises a mounting plate, a first shell is fixedly mounted on the lower surface of the mounting plate, water storage tanks are fixedly mounted on two sides of the upper surface of the mounting plate, and a first groove is formed in one end of the bottom wall of the first shell. The sponge is arranged, so that a layer of water film can be attached to the surface of the saw blade when the saw blade rotates, airflow nearby the saw blade can flow in an accelerated mode due to continuous rotation of the saw blade, the water film on the saw blade can evaporate rapidly, and the water film can evaporate rapidly. And cooling is efficiently conducted through evaporation, water waste is reduced, the situation that the service life of the saw blade is shortened due to the fact that the saw blade is overheated after working for a long time is avoided, the surface of the saw blade can be cleaned through sponge while cooling is conducted, the service life of the saw blade can be prolonged when the saw blade is cleaned through the sponge, and the stability during working is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of road construction, in particular to a road surface cutting and crushing device for road construction and maintenance. Background Art

[0002] Road construction and maintenance refers to various types of maintenance work such as repair, maintenance, and renewal of roads. This usually includes repairing, maintaining, renovating or rebuilding roads to improve their traffic conditions, extend their service life or increase safety. When the road surface is damaged or cracked, and the roadbed material needs to be replaced, the road surface at the damaged location must be cut and crushed before repair work can be carried out.

[0003] After the road surface is cut and crushed, it can be repaved or repaired, which can improve the quality of the road surface and increase its traffic capacity and service life. Mechanical cutting and manual cutting are often used for cutting the road surface. Mechanical cutting is more expensive and produces more noise, while manual cutting using a small cutting device produces less noise and lowers the cost. In addition, by cutting and crushing the road surface, waste materials can be used more effectively, reducing resource consumption and waste.

[0004] When a cutting device is used manually to cut a road, it often takes a long time to work. At this time, the cutting saw blade will generate extremely high temperature due to friction after long-term use. The high temperature will cause deformation, which will reduce its service life and make it unable to work for a long time. Traditional measures to deal with excessive temperature of the saw blade mostly use water flow to continuously impact the saw blade, and then absorb the temperature on the saw blade through the water flow. This method requires a lot of water to be wasted, and the heat absorption efficiency of water is relatively low, and the cooling effect on the saw blade is poor. In addition, a large amount of water flowing into the cutting position will cause the saw blade to splash water to the surroundings, causing the surrounding environment to be polluted, and it may also cause water damage to the line.

[0005] Therefore, it is necessary to propose a road surface cutting and crushing device for road construction and maintenance to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a road surface cutting and crushing device for road construction and maintenance, so as to solve the above-mentioned problems of poor cooling effect, waste of water resources and pollution caused by splashing.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pavement cutting and crushing device for road construction and maintenance, comprising a mounting plate, a first shell being fixedly mounted on the lower surface of the mounting plate, water tanks being fixedly mounted on both sides of the upper surface of the mounting plate, a first slot being opened at one end of the bottom wall of the first shell, a saw blade being arranged inside the first slot, a first pipe being connected and installed at the bottom end of the water tank, the first pipe passing through the mounting plate, a plurality of second pipes being connected and installed at the lower end of the first pipe close to the first shell, a third pipe being arranged on the internal sliding sealing card of the second pipe, a spring being arranged inside the second pipe, two ends of the spring being fixedly mounted on the second pipe and the third pipe respectively, an accommodation box being arranged on both sides of the saw blade, the third pipe being connected to the interior of the accommodation box, a sponge being detachably mounted on the interior of the accommodation box, an arc block being fixedly mounted on the top end of the outer surface of the accommodation box, and the sponge being in contact with the surface of the saw blade.

[0008] Preferably, a second shell is fixedly installed on the upper surface of the mounting plate, and fixing plates are fixedly installed on both sides of the saw blade through flanges, and a first tooth roller is fixedly installed in the middle of the side away from each other of the two fixing plates, and two symmetrical mounting blocks are fixedly installed inside the first shell, and connecting rods are rotatably installed on the side close to each other of the two mounting blocks, and a limiting rod is fixedly installed on one end of the connecting rod away from the mounting block, and the two limiting rods are rotatably installed in the middle of two corresponding first tooth rollers respectively, and a hydraulic rod is provided above one of the mounting blocks, and one end of the hydraulic rod is rotatably installed on an inner wall of one side of the second shell, and the other end of the hydraulic rod is rotatably installed in the middle of the connecting rod.

[0009] Preferably, a second gear roller is rotatably installed between the two mounting blocks, one end of the second gear roller is connected to the first gear roller via a first rack belt, a third shell is fixedly installed on one side of the second shell, a motor is fixedly installed inside one of the third shells, a transmission gear roller is fixedly installed on the driving end of the motor, and the other end of the second gear roller is connected to the transmission gear roller via a second rack belt.

[0010] Preferably, a fan is fixedly installed on the inner end of the first shell away from the saw blade, a second groove is opened on the side wall of the end of the first shell away from the saw blade, a mounting strip is fixedly installed on the outer surface of the first shell away from the saw blade, a collection box is detachably provided inside the mounting strip, and a filter plate is fixedly installed on the side of the collection box away from the mounting strip.

[0011] Preferably, support blocks are provided below the two limit rods, and the support blocks are fixedly mounted on the bottom wall of the first shell body, and support arc plates are fixedly mounted on both side walls inside the water tank.

[0012] Preferably, the diameter of the transmission gear roller is larger than the diameter of the second gear roller, and the diameter of the second gear roller is equal to the diameter of the first gear roller.

[0013] Preferably, a water inlet is connected and installed on the water storage tank.

[0014] Preferably, a handle is fixedly mounted on a side of the upper surface of the mounting plate away from the water tank, and a plurality of movable wheels are mounted on the lower surface of the mounting plate.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The utility model arranges a sponge so that a layer of water film can be attached to the surface of the saw blade when it rotates. Because the airflow near the saw blade will accelerate due to the continuous rotation of the saw blade, the water film on it will evaporate quickly, and then absorb a large amount of heat. The evaporation can be used to efficiently cool down and reduce water waste, thus preventing the saw blade from overheating due to long-term operation and shortening its life. The sponge can also clean the surface of the saw blade while cooling down. Therefore, the sponge can clean the saw blade and extend the life of the saw blade, thus ensuring stability during operation.

[0017] 2. The utility model is provided with a fan, which can absorb the dust generated by the saw blade and store it in the collection box, so as to prevent the dust from spreading and causing harm to the surrounding personnel, protect the construction environment, and when the fan drives the air flow, it can also make the water film on the saw blade evaporate quickly, so the cooling efficiency is higher;

[0018] 3. The utility model provides a hydraulic rod so that the saw blade can be completely stored in the interior of the second shell when the device is not in use, thereby reducing air circulation, thereby reducing the speed of rusting of the saw blade, and preventing damage to the saw blade or other items during transportation. Even if the motor switch is accidentally touched, no danger will occur, thereby ensuring safety during use and increasing the service life of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic structural diagram of a road surface cutting and crushing device for road construction and maintenance.

[0020] Figure 2 It is a structural schematic diagram of the mounting plate in the utility model.

[0021] Figure 3 It is a structural schematic diagram of the first shell in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the second pipeline in the utility model.

[0023] Figure 5 It is a schematic diagram of the structure inside the first shell of the utility model.

[0024] Figure 6 It is a schematic diagram of the connection structure of the hydraulic rod and the connecting rod in the utility model.

[0025] In the figure: 1, mounting plate; 2, first shell; 3, second shell; 4, water tank; 5, saw blade; 6, hydraulic rod; 7, mounting block; 8, handle; 9, moving wheel; 21, first trough; 22, second trough; 23, fan; 24, mounting strip; 25, collecting box; 31, third shell; 32, supporting arc plate; 33, motor; 41, water inlet; 42, first pipe; 43, second pipe; 44, spring; 45, third pipe; 46, placement box; 47, sponge; 48, arc block; 51, fixing plate; 52, first gear roller; 71, connecting rod; 72, limiting rod; 73, second gear roller; 74, supporting block; 251, filter plate; 331, transmission gear roller; 522, first rack belt; 732, second rack belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-Figure 6 The pavement cutting and crushing device for road construction and maintenance shown in the figure comprises a mounting plate 1, a first shell 2 is fixedly mounted on the lower surface of the mounting plate 1, a first slot 21 is opened at one end of the bottom wall of the first shell 2, a saw blade 5 is arranged inside the first slot 21, a second shell 3 is fixedly mounted on the upper surface of the mounting plate 1, water tanks 4 are fixedly mounted on both sides of the upper surface of the mounting plate 1, a handle 8 is fixedly mounted on the side of the upper surface of the mounting plate 1 away from the water tank 4, a plurality of moving wheels 9 are mounted on the lower surface of the mounting plate 1, and a fixing plate 51 is fixedly mounted on both sides of the saw blade 5 through a flange, and two A first tooth roller 52 is fixedly installed in the middle of the side away from each other of the fixed plate 51, and two symmetrical mounting blocks 7 are fixedly installed inside the first shell 2. A connecting rod 71 is rotatably installed on the side close to each other of the two mounting blocks 7. A limiting rod 72 is fixedly installed on one end of the connecting rod 71 away from the mounting block 7. The two limiting rods 72 are rotatably installed in the middle of the two corresponding first tooth rollers 52. A hydraulic rod 6 is provided above one mounting block 7, and one end of the hydraulic rod 6 is rotatably installed on the inner wall of one side of the second shell 3, and the other end of the hydraulic rod 6 is rotatably installed in the middle of the connecting rod 71.

[0028] A second gear roller 73 is rotatably installed between the two mounting blocks 7, and one end of the second gear roller 73 is connected to the first gear roller 52 through a first rack belt 522. A third shell 31 is fixedly installed on one side of the second shell 3, and a motor 33 is fixedly installed inside one of the third shells 31. A transmission gear roller 331 is fixedly installed on the driving end of the motor 33, and the other end of the second gear roller 73 is connected to the transmission gear roller 331 through a second rack belt 732. Support blocks 74 are provided below the two limit rods 72, and the support blocks 74 are fixedly installed on the bottom wall of the first shell 2. Support arc plates 32 are fixedly installed on both side walls inside the water tank 4. The diameter of the transmission gear roller 331 is greater than the diameter of the second gear roller 73, and the diameter of the second gear roller 73 is equal to the diameter of the first gear roller 52.

[0029] When in use, first energize the device, then the motor 33 works to drive the transmission gear roller 331 to rotate, and then the transmission gear roller 331 drives the second gear roller 73 to rotate synchronously through the second rack belt 732, the second gear roller 73 rotates through the first rack belt 522 to drive the first gear roller 52 to rotate, the first gear roller 52 rotates and then drives the fixed plate 51 and the saw blade 5 to rotate, the saw blade 5 rotates to cut the ground, when not in use, the hydraulic rod 6 can be controlled to retract, at this time the hydraulic rod 6 drives the connecting rod 71 to rotate around the mounting block 7, and then drives the saw blade 5 to be lifted until the limit rod 72 is blocked by the supporting arc plate 32, at this time the saw blade 5 is completely stored into the interior of the second housing 3, and then the moving wheel 9 is held to push the device to move it to other positions, when it is necessary to cut the road surface, it is only necessary to push the device to the target position, and then control The braking motor 33 works, and the saw blade 5 rotates at this time. Then the hydraulic rod 6 is controlled to work to push the connecting rod 71 to rotate in the opposite direction around the mounting block 7. At this time, the saw blade 5 is pushed into the interior of the first slot 21. At this time, the limit rod 72 is supported by the supporting block 74. The lower half of the saw blade 5 will contact the ground and cut the ground. The road surface can be cut and crushed by pushing the device to move. When it is necessary to turn, the hydraulic rod 6 is controlled to work to retract the saw blade 5 and then repeat the above operation. The hydraulic rod 6 is arranged so that the device can completely retract the saw blade 5 into the interior of the second shell 3 when not in use, reducing air circulation, thereby reducing the rusting speed of the saw blade 5, and preventing the saw blade 5 from being damaged or causing damage to other items during transportation. Even if the switch of the motor 33 is accidentally touched, there will be no danger, thereby ensuring safety during use and increasing the service life of the saw blade 5.

[0030] A water inlet 41 is installed on the water tank 4, and a first pipe 42 is installed on the bottom end of the water tank 4. The first pipe 42 penetrates the mounting plate 1, and a plurality of second pipes 43 are installed on the lower end of the first pipe 42 close to the first shell 2. A third pipe 45 is provided on the internal sliding sealing card of the second pipe 43, and a spring 44 is provided inside the second pipe 43. Both ends of the spring 44 are fixedly installed on the second pipe 43 and the third pipe 45 respectively. Both sides of the saw blade 5 are provided with an accommodation box 46, and the third pipe 45 is connected to the interior of the accommodation box 46. A sponge 47 is detachably installed inside the accommodation box 46, and an arc block 48 is fixedly installed on the top of the outer surface of the accommodation box 46, and the sponge 47 fits the surface of the saw blade 5.

[0031] Before use, use an external water pipe to add cooling water to the inside of the water storage tank 4 through the water inlet 41. At this time, the water will flow into the inside of the second pipe 43 through the first pipe 42, and flow into the inside of the placement box 46 through the third pipe 45. The sponge 47 will absorb water to keep itself moist. Under the push of the spring 44, the two placement boxes 46 cover each other, and the water in the sponge 47 is not easy to evaporate. When the saw blade 5 moves downward, it will first contact the two arc blocks 48. Because the arc blocks 48 have arc surfaces, the saw blade 5 will not cause damage to the arc blocks 48. The saw blade 5 will move to both sides when it descends. Push open the placement box 46. At this time, the spring 44 is compressed, and then the spring 44 generates a thrust to make the sponge 47 close to the surface of the saw blade 5. The continuous rotation of the saw blade 5 will cause a layer of water film to adhere to its surface. The wet sponge 47 can cool the saw blade 5 and clean the surface of the saw blade 5. The sponge 47 can prevent the water tank 4 from discharging water too quickly. The water tank 4 will only discharge water when the saw blade 5 rotates to take away the water on the sponge 47, thereby controlling the flow of cooling water to prevent a large amount of cooling water from gushing out and causing water splashing at the cutting position. If the cooling water splashes onto the circuit, it will cause damage to the circuit.

[0032] The device is provided with a sponge 47 so that a layer of water film can adhere to the surface of the saw blade 5 when it rotates. Due to the continuous rotation of the saw blade 5, the water film thereon will evaporate quickly, thereby absorbing a large amount of heat, and the sponge 47 can also control the water output to prevent the water from being wasted or affecting the construction due to too fast water output. The sponge 47 can efficiently cool down through evaporation to prevent the saw blade 5 from overheating due to long-term operation. While cooling down, the sponge 47 can also clean the surface of the saw blade 5. If dust adheres to the surface of the saw blade 5, when the saw blade 5 rotates, the friction between the dust and the friction between the blade and the road surface will increase, causing the blade to heat up faster and the service life to be rapidly reduced. Therefore, the sponge 47 can clean the saw blade 5 and increase the life of the saw blade 5 to ensure stability during operation.

[0033] A fan 23 is fixedly installed at the end of the first shell 2 away from the saw blade 5, a second groove 22 is opened on the side wall of the end of the first shell 2 away from the saw blade 5, a mounting strip 24 is fixedly installed on the outer surface of the first shell 2 away from the saw blade 5, a collection box 25 is detachably provided inside the mounting strip 24, and a filter plate 251 is fixedly installed on the side of the collection box 25 away from the mounting strip 24.

[0034] During operation, the saw blade 5 will generate a large amount of dust when cutting the road surface. If the workers work in this environment for a long time, it will cause pneumoconiosis, which will cause great pollution to the environment. At this time, the fan 23 will work synchronously. At this time, the fan 23 will blow the air inside the first shell 2 into the collection box 25 through the second slot 22. The first shell 2 will inhale the external air into the interior through the first slot 21, and then the dust generated by the saw blade 5 cutting will be quickly sucked away. The airflow is filtered by the filter plate 251 and then discharged from the collection box 25, and the dust will be collected in the collection box 25. After the work is completed, the collection box 25 can be disassembled and cleaned. The fan 23 drives the airflow at the position of the first slot 21. The increase in the airflow velocity at the position of the first slot 21 causes the water film on the surface of the saw blade 5 to evaporate faster, which can cool the saw blade 5 more quickly.

[0035] Working principle: When in use, first energize the device, then the motor 33 works to drive the transmission gear roller 331 to rotate, and then the transmission gear roller 331 drives the second gear roller 73 to rotate synchronously through the second rack belt 732, the second gear roller 73 rotates through the first rack belt 522 to drive the first gear roller 52 to rotate, the first gear roller 52 rotates and then drives the fixed plate 51 and the saw blade 5 to rotate, the saw blade 5 rotates to cut the ground, when not in use, the hydraulic rod 6 can be controlled to retract, at this time the hydraulic rod 6 drives the connecting rod 71 to rotate around the mounting block 7, and then drives the saw blade 5 to be lifted until the limit rod 72 is blocked by the supporting arc plate 32, at this time the saw blade 5 is completely stored. The saw blade 5 is then pushed into the interior of the second housing 3, and then the moving wheel 9 is held to push the device to move it to another position. When it is necessary to cut the road surface, the device only needs to be pushed to the target position, and then the motor 33 is controlled to work. At this time, the saw blade 5 rotates, and then the hydraulic rod 6 is controlled to work to push the connecting rod 71 to rotate in the opposite direction around the mounting block 7. At this time, the saw blade 5 is pushed into the interior of the first slot 21. At this time, the limit rod 72 is supported by the supporting block 74, and the lower half of the saw blade 5 will contact the ground and cut the ground. The road surface can be cut and crushed by pushing the device to move. When it is necessary to turn, the hydraulic rod 6 is controlled to work to retract the saw blade 5 and then the above operation is repeated;

[0036] Before use, use an external water pipe to add cooling water to the water storage tank 4 through the water inlet 41. At this time, the water will flow into the second pipe 43 through the first pipe 42, and flow into the placement box 46 through the third pipe 45. The sponge 47 will absorb water to keep itself moist. Under the push of the spring 44, the two placement boxes 46 cover each other. The water in the sponge 47 is not easy to evaporate. When the saw blade 5 moves downward, it will first contact the two arc blocks 48. Because the arc blocks 48 have arc surfaces, the saw blade 5 will not The arc block 48 is damaged, and the saw blade 5 descends to push the placement box 46 to both sides. At this time, the spring 44 is compressed, and then the spring 44 generates a thrust to make the sponge 47 close to the surface of the saw blade 5. The continuous rotation of the saw blade 5 will cause a layer of water film to adhere to its surface. The wet sponge 47 can cool the saw blade 5 and clean the surface of the saw blade 5. The sponge 47 can prevent the water storage tank 4 from discharging water too quickly. Only when the saw blade 5 rotates to take away the water on the sponge 47, the water storage tank 4 will discharge water to control the flow of cooling water.

[0037] When the fan 23 is working, the air inside the first shell 2 will be blown into the interior of the collecting box 25 through the second slot body 22. The first shell 2 will suck the external air into the interior through the first slot body 21, and then the dust generated by the cutting of the saw blade 5 can be quickly sucked away. The airflow is filtered by the filter plate 251 and then discharged from the collecting box 25, and the dust will be collected in the inside of the collecting box 25. After the work is completed, the collecting box 25 can be disassembled and cleaned. The fan 23 drives the airflow at the position of the first slot body 21. The increase in the airflow velocity at the position of the first slot body 21 causes the water film on the surface of the saw blade 5 to evaporate faster, which can cool the saw blade 5 more quickly.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A road surface cutting and crushing device for road construction and maintenance, comprising a mounting plate (1), characterized in that: A first shell (2) is fixedly mounted on the lower surface of the mounting plate (1), and water tanks (4) are fixedly mounted on both sides of the upper surface of the mounting plate (1). A first groove (21) is provided at one end of the bottom wall of the first shell (2), and a saw blade (5) is provided inside the first groove (21). A first pipe (42) is connected and mounted at the bottom end of the water tank (4), and the first pipe (42) passes through the mounting plate (1). A plurality of second pipes (43) are connected and mounted at the lower end of the first pipe (42) close to the first shell (2), and the second pipes (43) are connected and mounted. The internal sliding sealing card is provided with a third pipe (45), the interior of the second pipe (43) is provided with a spring (44), the two ends of the spring (44) are respectively fixedly mounted on the second pipe (43) and the third pipe (45), both sides of the saw blade (5) are provided with a placement box (46), the third pipe (45) is communicated with the interior of the placement box (46), a sponge (47) is detachably mounted inside the placement box (46), an arc block (48) is fixedly mounted on the top of the outer surface of the placement box (46), and the sponge (47) is in contact with the surface of the saw blade (5).

2. A road surface cutting and crushing device for road construction and maintenance according to claim 1, characterized in that: A second shell (3) is fixedly mounted on the upper surface of the mounting plate (1), and a fixing plate (51) is fixedly mounted on both sides of the saw blade (5) via flanges. A first tooth roller (52) is fixedly mounted in the middle of the two fixing plates (51) away from each other. Two symmetrical mounting blocks (7) are fixedly mounted inside the first shell (2), and a connecting rod (71) is rotatably mounted on the sides of the two mounting blocks (7) close to each other. A limiting rod (72) is fixedly mounted on one end of the connecting rod (71) away from the mounting block (7), and the two limiting rods (72) are rotatably mounted in the middle of two corresponding first tooth rollers (52). A hydraulic rod (6) is provided above one of the mounting blocks (7), and one end of the hydraulic rod (6) is rotatably mounted on an inner wall of one side of the second shell (3), and the other end of the hydraulic rod (6) is rotatably mounted in the middle of the connecting rod (71).

3. A road surface cutting and crushing device for road construction and maintenance according to claim 2, characterized in that: A second toothed roller (73) is rotatably mounted between the two mounting blocks (7), one end of the second toothed roller (73) is connected to the first toothed roller (52) via a first rack belt (522), a third shell (31) is fixedly mounted on one side of the second shell (3), a motor (33) is fixedly mounted inside one of the third shells (31), a transmission toothed roller (331) is fixedly mounted at the driving end of the motor (33), and the other end of the second toothed roller (73) is connected to the transmission toothed roller (331) via a second rack belt (732).

4. A road surface cutting and crushing device for road construction and maintenance according to claim 1, characterized in that: A fan (23) is fixedly mounted on the end of the first shell (2) away from the saw blade (5); a second groove (22) is provided on the side wall of the end of the first shell (2) away from the saw blade (5); a mounting strip (24) is fixedly mounted on the outer surface of the side of the first shell (2) away from the saw blade (5); a collection box (25) is detachably mounted inside the mounting strip (24); and a filter plate (251) is fixedly mounted on the side of the collection box (25) away from the mounting strip (24).

5. A road surface cutting and crushing device for road construction and maintenance according to claim 2, characterized in that: A support block (74) is provided below each of the two limit rods (72), and the support block (74) is fixedly mounted on the bottom wall of the first shell (2). Support arc plates (32) are fixedly mounted on both side walls inside the water storage tank (4).

6. A road surface cutting and crushing device for road construction and maintenance according to claim 3, characterized in that: The diameter of the transmission gear roller (331) is greater than the diameter of the second gear roller (73), and the diameter of the second gear roller (73) is equal to the diameter of the first gear roller (52).

7. A road surface cutting and crushing device for road construction and maintenance according to claim 1, characterized in that: The water storage tank (4) is connected and provided with a water inlet (41).

8. The road surface cutting and crushing device for road construction and maintenance according to claim 1, characterized in that: A handle (8) is fixedly mounted on the side of the upper surface of the mounting plate (1) away from the water tank (4), and a plurality of movable wheels (9) are mounted on the lower surface of the mounting plate (1).

Images