Self-propelled cement base layer watering device and use method

Abstract

The present application relates to the technical fields of road base maintenance, and a self-propelled cement base watering device and a use method thereof, comprising: a first watering assembly, the first watering assembly comprising a first water pipe, a plurality of first spray heads being arranged on the sidewall of the first water pipe; two second watering assemblies, the first watering assembly being arranged between the two second watering assemblies, the two second watering assemblies being mirror-symmetric in structure, each second watering assembly comprising a transmission shaft, a second water pipe being arranged on the middle part of the transmission shaft, a plurality of second spray heads being arranged on the sidewall of the second water pipe, the top of each transmission shaft being connected with the output end of a positioning assembly. In use, the positioning assembly can drive the two transmission shafts to rotate simultaneously, and then drive the two second water pipes to rotate, the whole process not needing manual control by the operator, the physical strength of the operator being saved, the positioning assembly being arranged above the second water pipe, the water sprayed from the second spray heads not flowing to the positioning assembly, and the service life of the positioning assembly being prolonged.

Description

Technical Field

[0001] This invention relates to the field of road base maintenance technology, specifically to a self-propelled cement base watering and curing device and its usage method. Background Technology

[0002] Semi-rigid cement-stabilized crushed stone base course in arid and cold regions is a road base structure that uses cement as an inorganic binder to bond crushed stone, gravel, and other local materials into a whole through a hydration reaction, forming a plate-like structure with high strength and rigidity. Water spraying is crucial for this: firstly, it promotes cement hydration, ensuring sufficient strength; secondly, it prevents shrinkage cracks, reducing the risk of cracking; thirdly, it avoids frost damage, ensuring even moisture distribution and improving frost resistance; and fourthly, it ensures interlayer bonding, facilitating the penetration of tack coat. Currently, mobile maintenance devices are commonly used, spraying water onto the cement base course through nozzles. For wider roads, the nozzles on both sides of the device need to be adjusted to change their angle as needed. For example, Chinese utility model patent with patent application number "CN202420039363.5" provides a highway base course maintenance device. The device, through the connection of a ring, handle, spring and circular plate, helps to limit the position of the limiting rod, thereby positioning the first water distribution pipe and ensuring that the spraying angle of the first water distribution pipe remains stable during the spraying process. By setting the spraying angle of the first water distribution pipe to be adjustable, it is beneficial to flexibly adjust the spraying range of the flat nozzle, thereby improving the maintenance effect.

[0003] The drawback of this device is that adjusting the angle of the first water distribution pipes on both sides requires manual control of the compression springs and manual pulling of the first water distribution pipes, which is physically demanding for the operator. Furthermore, the springs are located below the first water distribution pipes, making it easy for water sprayed from the flat nozzles to flow onto the springs, reducing their lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a self-propelled cement base watering and curing device and its usage method. The adjustment component can drive two drive shafts to rotate simultaneously, thereby driving two second water pipes to rotate. The entire process does not require manual control by the operator, saving the operator's physical strength. The adjustment component is located above the second water pipes, so the water sprayed from the second nozzles will not flow onto the adjustment component, extending the service life of the adjustment component.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In the first technical solution, a self-propelled cement base watering and curing device includes: a first watering assembly, the first watering assembly including a first water pipe, and a plurality of first nozzles provided on the side wall of the first water pipe; two second watering assemblies, the first watering assembly being disposed between the two second watering assemblies, the two second watering assemblies having mirror-symmetrical structures, each second watering assembly including a drive shaft, a bracket being provided in the middle of the drive shaft, the bracket being connected to the second water pipe, and a plurality of second nozzles being provided on the side wall of the second water pipe; and an adjustment assembly disposed above the second water pipe, the adjustment assembly including a drive shaft, two first bevel gears and two second bevel gears, the two first bevel gears being respectively disposed at both ends of the drive shaft, and the two second bevel gears being respectively disposed at the top of the two drive shafts, the first bevel gears meshing with the second bevel gears for transmission.

[0006] In the first technical solution, preferably, the second water pipe is an arc-shaped pipe with its concave surface facing the drive shaft. The first section of the second water pipe is closed, and the second end is open. The second end of the second water pipe is provided with a water conveying component. The first end of the water conveying component extends into the interior of the second water pipe and can slide along the inner wall of the second water pipe.

[0007] In the first technical solution, preferably, the water supply component includes a third water pipe and a fourth water pipe. Both ends of the third water pipe are C-shaped structures with their concave surfaces facing opposite directions. The first end of the third water pipe extends into the interior of the second water pipe, and the second end of the third water pipe and the fourth water pipe are both located outside the second water pipe. The fourth water pipe is connected to the third water pipe.

[0008] In the first technical solution, preferably, the water supply component further includes a fifth water pipe, the fifth water pipe having a shape that matches the third water pipe, the first end of the fifth water pipe extending into the interior of the second water pipe and being able to slide along the inner wall of the second water pipe, the second end of the fifth water pipe communicating with the outlet end of the water replenishment component, and both the second end of the fifth water pipe and the water replenishment component being located outside the second water pipe.

[0009] In the first technical solution, preferably, the top of the third water pipe is provided with a cutting groove, the fifth water pipe is disposed in the cutting groove and fixedly connected to the third water pipe, the outer surface of the fifth water pipe smoothly transitions with the outer surface of the third water pipe, and the first end of the fifth water pipe is provided with an electrically controlled valve.

[0010] In the first technical solution, preferably, the length of the fifth water pipe is greater than the length of the third water pipe.

[0011] In the first technical solution, preferably, the water replenishment component includes a water replenishment box, an electric telescopic rod is provided inside the water replenishment box, the output end of the electric telescopic rod is connected to a pusher plate, the pusher plate can slide along the inner wall of the water replenishment box, the pusher plate and the inner wall of the water replenishment box together form a water replenishment cavity, and the water replenishment cavity is connected to the fifth water pipe through a sixth water pipe.

[0012] In the first technical solution, preferably, it further includes a water tank and a support plate. The water tank is equipped with a first water supply component and two second water supply components. The outlet of the first water supply component is connected to the interior of the first water pipe. The outlets of the two second water supply components are respectively connected to the interiors of the two water conveying components. The adjustment component is located on the top of the water tank. The first water spraying component, the two second water spraying components and the water tank are all located on the top surface of the support plate. The bottom of the drive shaft is rotatably connected to the support plate. Both ends of the support plate are equipped with electric vehicle wheels.

[0013] In the first technical solution, preferably, the water tank is provided with a water-separating box inside, which divides the interior of the water tank into a first water storage chamber, two second water storage chambers and a water conveying channel. The first water storage chamber and the second water storage chambers are connected through a water distribution hole, and the two second water storage chambers are connected through the water conveying channel.

[0014] In the second technical solution, a method for using a self-propelled cement base watering and curing device, employing the self-propelled cement base watering and curing device described in the first technical solution, includes the following steps: Step 1: Filling the water tank with water; Step 2: The electric vehicle wheels operate, driving the support plate to move; Step 3: The first water supply component operates, pumping water from the first water storage chamber into the first water pipe, and several first nozzles spray water onto the cement base; Step 4: The second water supply component operates, pumping water from the second water storage chamber... Water is pumped into the water supply component, which blocks the inlets of several second nozzles near the first water pipe, causing the second nozzles away from the first water pipe to spray water onto the cement base, while the second nozzles near the first water pipe do not spray water. Step 5: When it is necessary to adjust the spray angle of the second nozzles, the adjustment component drives the drive shaft to rotate, which in turn drives the second water pipe to rotate. The water supply component no longer blocks the inlets of the second nozzles near the first water pipe, and all the second nozzles spray water onto the cement base.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (i) When in use, this invention enables intelligent and precise water replenishment and maintenance of cement-stabilized crushed stone base courses. The adjustment component can drive two drive shafts to rotate simultaneously, thereby driving two second water pipes to rotate. The entire process does not require manual control by the operator, saving the operator's physical strength. The adjustment component is located above the second water pipes, so the water sprayed from the second nozzles will not flow onto the adjustment component, extending the service life of the adjustment component.

[0017] (ii) In this invention, the second water pipe is an arc-shaped pipe. Therefore, no matter how the second water pipe changes position by rotation, there will always be a second nozzle closest to the first water pipe. When this second nozzle sprays water onto the cement base, it will partially overlap with the water sprayed onto the cement base by the first nozzle located at the end of the first water pipe. The water falling on the top surface of the cement base is continuous and there will be no missed spots.

[0018] (iii) In this invention, the fifth water pipe is located on top of the third water pipe, and the outer surface of the fifth water pipe smoothly transitions with the outer surface of the third water pipe. The fifth water pipe also extends into the second water pipe. When the second water pipe rotates, the fifth water pipe can also replenish water into the interior of the second water pipe, ensuring that the water pressure sprayed outward from the several second nozzles remains stable and does not decrease. Attached Figure Description

[0019] Figure 1 This is an isometric view of the invention from one angle;

[0020] Figure 2 This is an isometric view of the invention from another angle;

[0021] Figure 3 This is a top sectional view of a portion of the structure of the present invention when the inlet of the second nozzle is blocked.

[0022] Figure 4 This is a top sectional view of part of the structure of the present invention when the inlet of the second nozzle is no longer blocked;

[0023] Figure 5 This is an isometric view of the first sprinkler assembly in this invention;

[0024] Figure 6 This is an isometric view of the second sprinkler assembly in this invention;

[0025] Figure 7 This is an isometric view of the positioning component in this invention;

[0026] Figure 8 This is an exploded isometric view of the water conveying component structure in this invention;

[0027] Figure 9 This is an isometric view of the water tank in this invention;

[0028] Figure 10This is a front sectional view of the water tank in this invention;

[0029] Figure 11 This is an axonometric view of the load-bearing plate and the electric vehicle wheel in this invention;

[0030] Figure 12 This is an isometric view of the water replenishment component in this invention.

[0031] The reference numerals in the figures include:

[0032] 1-First sprinkler assembly, 11-First water pipe, 12-First nozzle, 2-Second sprinkler assembly, 21-Drive shaft, 22-Second water pipe, 23-Second nozzle, 3-Adjustment assembly, 31-Motor, 32-First spur gear, 33-Drive shaft, 34-Second spur gear, 35-First bevel gear, 36-Second bevel gear, 4-Water delivery component, 41-Third water pipe, 411-Cutting groove, 42-Fourth water pipe 43-Fifth water pipe, 44-Electrically controlled valve, 5-Water tank, 51-Water-proof box, 511-Water distribution hole, 52-First water storage chamber, 53-Second water storage chamber, 54-Water supply channel, 6-Bearing plate, 7-First water supply component, 8-Second water supply component, 9-Electric vehicle wheel, 10-Water replenishment component, 101-Water replenishment box, 102-Electric telescopic rod, 103-Water pusher plate, 104-Water replenishment chamber, 105-Sixth water pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0034] Please see Figure 1-12This invention provides a technical solution: a self-propelled cement base watering and curing device, comprising a first watering assembly 1, two second watering assemblies 2, and an adjustment assembly 3. The first watering assembly 1 includes a first water pipe 11 and several first nozzles 12. The second watering assemblies 2 include a drive shaft 21, a second water pipe 22, and several second nozzles 23. The adjustment assembly 3 is located above the second water pipes 22, and the tops of the two drive shafts 21 are connected to the output end of the adjustment assembly 3. In use, the first water pipe 11 sprays water onto the cement base through the several first nozzles 12, and the second water pipes 22 spray water onto the cement base through the several second nozzles 23. When it is necessary to adjust the spray angle of the second nozzles 23, the adjustment assembly 3 drives the two drive shafts 21 to rotate simultaneously, thereby rotating the two second water pipes 22. Since the entire process does not require manual control by the operator, it saves the operator's physical strength. The adjustment component 3 is located above the second water pipe, so the water sprayed from the second nozzle 23 will not flow onto the adjustment component 3, thus extending the service life of the adjustment component.

[0035] Please see Figure 1-7 In this embodiment, the adjustment assembly 3 includes a motor 31, a first spur gear 32, a drive shaft 33, a second spur gear 34, two first bevel gears 35, and two second bevel gears 36. The first spur gear 32 meshes with the second spur gear 34 for transmission, and the first bevel gears 35 and second bevel gears 36 mesh for transmission. When the adjustment assembly 3 is working, the motor 31 drives the first spur gear 32 to rotate, which in turn drives the second spur gear 34 and the drive shaft 33 to rotate together. The drive shaft 33 then drives the two first bevel gears 35 to rotate simultaneously. The two second bevel gears 36 are respectively fixedly mounted on the tops of the two drive shafts 21, allowing the two drive shafts 21 to rotate simultaneously in opposite directions. By rotating the motor 31 forward and backward, the adjustment assembly 3 can adjust and change the orientation of the second water pipe 22 and several second nozzles 23. Example 2

[0036] Based on Example 1, please refer to Figure 1-8The second water pipe 22 is an arc-shaped pipe. Therefore, regardless of how the second water pipe 22 changes position by rotation, there will always be a second nozzle 23 closest to the first water pipe 11. When this second nozzle 23 sprays water onto the cement base, it partially overlaps with the water sprayed onto the cement base by the first nozzle 12 located at the end of the first water pipe 11, ensuring a continuous flow of water onto the top surface of the cement base without any leaks. The second end of the second water pipe 22 is equipped with a water delivery component 4, which extends into the interior of the second water pipe 22. When the second water pipe 22 is in its initial position and not rotating, the water delivery component 4 can block the inlets of several second nozzles 23 on the side closest to the first water pipe 11. This allows several second nozzles 23 on the side away from the first water pipe 11 to spray water onto the cement base, while those on the side closest to the first water pipe 11 do not spray water. This ensures that when the second water pipe 22 is not rotating, the water sprayed from the second nozzles 23 will not create splashes, the adjusting component 3 will not be splashed, and water conservation is achieved. When the second water pipe 22 rotates, the water delivery component 4 slides along the inner wall of the second water pipe 22. The water delivery component 4 no longer blocks the inlet of several second nozzles 23 near the side of the first water pipe 11, and all the second nozzles 23 spray water onto the cement base.

[0037] Please see Figure 1-8 The water supply component 4 includes a third water pipe 41, a fourth water pipe 42, a fifth water pipe 43, and an electrically controlled valve 44. Both ends of the third water pipe 41 have a C-shaped structure with their concave surfaces facing opposite directions. Therefore, after the third water pipe 41 extends into the second water pipe 22, its outer surface can block the inlet of the second nozzle 23. The fourth water pipe 42 can transport water into the third water pipe 41, and then into the second water pipe 22. The fifth water pipe 43 is located at the top of the third water pipe 41 and also extends into the second water pipe 22. The top of the third water pipe 41 has a cutting groove 411, and the fifth water pipe 43 is located within the cutting groove 411, with its outer surface smoothly transitioning to the outer surface of the third water pipe 41. As the second water pipe 22 rotates, the third water pipe 41 and the fifth water pipe 43 gradually move to the outside of the second water pipe 22, increasing the internal volume of the second water pipe 22. If the water flowing from the third water pipe 41 were to fill the interior of the second water pipe 22 alone, the water pressure sprayed outward from the second nozzles 23 would decrease. Therefore, in this embodiment, when the second water pipe 22 rotates, the fifth water pipe 43 can also replenish water into the interior of the second water pipe 22, ensuring that the water pressure sprayed outward from the second nozzles 23 remains stable and does not decrease.

[0038] Please see Figure 1-8An electrically controlled valve 44 is installed on the fifth water pipe 43. When the second water pipe 22 rotates clockwise, increasing its internal volume, the valve 44 opens, allowing water from the fifth water pipe 43 to enter the second water pipe 22. When the second water pipe 22 is not rotating and its internal volume remains constant, the valve 44 closes, preventing water from flowing between the fifth and second water pipes. When the second water pipe 22 rotates counterclockwise, decreasing its internal volume, the valve 44 opens, allowing water from the second water pipe 22 to enter the fifth water pipe 43, preventing water from the second water pipe 22 from obstructing its rotation. The fifth water pipe 43 is longer than the third water pipe 41, so water flowing into the second water pipe 22 through the fifth pipe 43 preferentially fills the second water pipe 22 without flowing back into the third water pipe 41.

[0039] Please see Figure 1-12 The invention also includes a water tank 5, a support plate 6, a first water supply assembly 7, two second water supply assemblies 8, several electric vehicle wheels 9, and a water replenishment assembly 10. The first water spraying assembly 1, the two second water spraying assemblies 2, and the water tank 5 are all located on the top surface of the support plate 6, and the water replenishment assembly 10 is fixedly connected to the outer wall of the water tank 5. The water tank 5 can store water and can move the entire invention via the support plate 6 and the several electric vehicle wheels 9. The first water supply assembly 7 can transport the water in the water tank 5 to the first water pipe 11, the two second water supply assemblies 8 can transport the water in the water tank 5 to the two fourth water pipes 42 respectively, and then to the two second water pipes 22, and the water replenishment assembly 10 can simultaneously supply water into the two fifth water pipes 43.

[0040] Please see Figure 1-10 The water tank 5 has an internal water-separating box 51, with water-dividing holes 511 on both sides of the water-separating box 51. The water-separating box 51 divides the interior of the water tank 5 into a first water storage chamber 52, two second water storage chambers 53, and a water delivery channel 54. In use, external water is injected into the first water storage chamber 52. The water in the first water storage chamber 52 flows through the water-dividing holes 511 into the two second water storage chambers 53 and the water delivery channel 54, eventually filling the water tank 5. In this embodiment, the first water supply component 7 is a first water pump, and the second water supply component 8 is a second water pump. The first water pump delivers water from the first water storage chamber 52 into the first water pipe 11, and the second water pump delivers water from the second water storage chambers 53 into the second water pipe 22. The water delivery channel 54 ensures that the water level in the two second water storage chambers 53 remains the same at all times.

[0041] In this embodiment, the water tank 5 is also equipped with a sensor assembly (not shown in the figure), which includes an STM32 controller, a temperature and humidity sensor, and a water outlet solenoid valve. The temperature and humidity sensor sends signals to the STM32 controller based on the ambient temperature and humidity. The STM32 controller then opens the water outlet solenoid valve and starts the first and second water pumps, thereby delivering water from the water tank 5 to the first water pipe 11 and the second water pipe 22, and spraying it through the first nozzle 12 and the second nozzle 23. The sensor assembly can intelligently adjust the spray volume, thus achieving intelligent and precise maintenance.

[0042] Please see Figure 1-12 The water replenishment assembly 10 includes a water replenishment box 101, an electric telescopic rod 102, two pusher plates 103, and two sixth water pipes 105. The pusher plates 103 and the inner wall of the water replenishment box 101 form a water replenishment cavity 104, which is connected to the fifth water pipe through the sixth water pipe 105. The electric telescopic rod 102 has two output ends, and the two pusher plates 103 are respectively connected to the two output ends of the electric telescopic rod 102, so there are also two water replenishment cavities 104. In the initial state, the output ends of the electric telescopic rod 102 are in a shortened state, and both water replenishment cavities 104 are filled with water. When the second water pipe 22 rotates in the forward direction, increasing the internal volume of the second water pipe 22, the output ends of the electric telescopic rod 102 extend, and the pusher plates 103 push the water in the water replenishment cavity 104 into the sixth water pipe 105, and then deliver it to the fifth water pipe 43 and the second water pipe 22. When the second water pipe 22 rotates in the opposite direction, causing the volume inside the second water pipe 22 to decrease, the output end of the electric telescopic rod 102 shortens, and the water in the second water pipe 22 first enters the fifth water pipe 43, and then returns to the water replenishment chamber 104 through the sixth water pipe 105.

[0043] Please see Figure 1 The outer wall of the water tank 5 is equipped with a controller and a battery. Both the controller and the battery are electrically connected to the adjustment component 3, the water supply component 4, the first water pump, the second water pump, the electric vehicle wheel 9, the sensor component, and the water replenishment component 10 in this invention. The controller can control and adjust the working status of each electrical appliance, and the battery can supply power to each electrical appliance.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-propelled cement base watering and curing device, characterized in that, include: The first sprinkler assembly includes a first water pipe, and a plurality of first nozzles are provided on the side wall of the first water pipe. Two second sprinkler components are provided, with the first sprinkler component positioned between the two second sprinkler components. The structures of the two second sprinkler components are mirror-symmetrical. Each second sprinkler component includes a drive shaft, with a support in the middle of the drive shaft. The support is connected to a second water pipe, and a plurality of second nozzles are provided on the side wall of the second water pipe. The adjustment assembly is located above the second water pipe. The adjustment assembly includes a drive shaft, two first bevel gears and two second bevel gears. The two first bevel gears are respectively located at both ends of the drive shaft, and the two second bevel gears are respectively located at the top of the two drive shafts. The first bevel gears and the second bevel gears mesh and transmit power. The second water pipe is an arc-shaped pipe with its concave surface facing the drive shaft. The first section of the second water pipe is closed, and the second end is open. The second end of the second water pipe is provided with a water conveying component. The first end of the water conveying component extends into the interior of the second water pipe and can slide along the inner wall of the second water pipe. The water supply component includes a third water pipe and a fourth water pipe. Both ends of the third water pipe are C-shaped with their concave surfaces facing opposite directions. The first end of the third water pipe extends into the interior of the second water pipe, and the second end of the third water pipe and the fourth water pipe are both located outside the second water pipe. The fourth water pipe is connected to the third water pipe. The water supply component also includes a fifth water pipe, which matches the shape of the third water pipe. The first end of the fifth water pipe extends into the interior of the second water pipe and can slide along the inner wall of the second water pipe. The second end of the fifth water pipe is connected to the outlet end of the water supply component. Both the second end of the fifth water pipe and the water supply component are located outside the second water pipe.

2. The self-propelled cement base watering and curing device according to claim 1, characterized in that, The top of the third water pipe is provided with a cutting groove, the fifth water pipe is located in the cutting groove and is fixedly connected to the third water pipe, the outer surface of the fifth water pipe is smoothly transitioned to the outer surface of the third water pipe, and the first end of the fifth water pipe is provided with an electrically controlled valve.

3. The self-propelled cement base watering and curing device according to claim 2, characterized in that, The length of the fifth water pipe is greater than the length of the third water pipe.

4. The self-propelled cement base watering and curing device according to claim 1, characterized in that, The water replenishment component includes a water replenishment box, which contains an electric telescopic rod. The output end of the electric telescopic rod is connected to a pusher plate. The pusher plate can slide along the inner wall of the water replenishment box. The pusher plate and the inner wall of the water replenishment box together form a water replenishment cavity. The water replenishment cavity is connected to the fifth water pipe through a sixth water pipe.

5. The self-propelled cement base watering and curing device according to claim 1, characterized in that, It also includes a water tank and a support plate. The water tank is equipped with a first water supply component and two second water supply components. The outlet of the first water supply component is connected to the interior of the first water pipe. The outlets of the two second water supply components are respectively connected to the interiors of the two water conveying components. The adjustment component is located on the top of the water tank. The first water spraying component, the two second water spraying components and the water tank are all located on the top surface of the support plate. The bottom of the drive shaft is rotatably connected to the support plate. Both ends of the support plate are equipped with electric vehicle wheels.

6. The self-propelled cement base watering and curing device according to claim 5, characterized in that, The water tank is equipped with a water-separating box inside, which divides the interior of the water tank into a first water storage chamber, two second water storage chambers, and a water conveying channel. The first water storage chamber and the second water storage chambers are connected through a water distribution hole, and the two second water storage chambers are connected through the water conveying channel.

7. A method of using a self-propelled cement base watering and curing device, comprising using the self-propelled cement base watering and curing device as described in claim 6, characterized in that, Includes the following steps: Step 1: Fill the water tank with water; Step 2: The electric vehicle wheels operate, driving the support plate to move; Step 3: The first water supply component operates, pumping water from the first water storage chamber into the first water pipe, and several first nozzles spray water onto the cement base layer. Step 4: The second water supply component operates, pumping water from the second water storage chamber into the water delivery component. The water delivery component blocks the inlets of several second nozzles on the side near the first water pipe, causing several second nozzles on the side away from the first water pipe to spray water onto the cement base, while several second nozzles on the side near the first water pipe do not spray water. Step 5: When it is necessary to adjust the spray angle of the second nozzle, the adjustment component drives the drive shaft to rotate, the drive shaft drives the second water pipe to rotate, the water delivery component no longer blocks the water inlet of several second nozzles near the first water pipe, and all the second nozzles spray water onto the cement base.

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