Concrete pavement maintenance equipment
By introducing an extended spraying mechanism into concrete pavement maintenance equipment, and using a combination of screws and sliders driven by a motor to extend and retract the spray nozzle, the applicability problem caused by the fixed length of the spray nozzle is solved, and the adaptability and efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202422901428.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing water spray equipment has a fixed nozzle length, which cannot adapt to roads and bridge surfaces of different widths, resulting in low practicality.
A concrete pavement maintenance device was designed, which adopts an extended spraying mechanism. Through the combination of screw and slider, and with the help of motor drive, the second spray nozzle can be extended or retracted to adapt to the needs of pavements of different widths.
It enables flexible adjustment of the spraying range according to the road width, adapting to the maintenance needs of roads of different widths, and improving the applicability and efficiency of the equipment.
Smart Images

Figure CN223535558U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of maintenance equipment technology, specifically relating to a concrete pavement maintenance device. Background Technology
[0002] After concrete pavement is laid, it often needs to be sprayed with water for curing to ensure that the concrete hardens to a good strength. During the water curing process, water spraying equipment is used. The existing water spraying equipment consists of a spray pipe with a length designed according to the width of the road surface. Spray nozzles are evenly distributed on the bottom side of the spray pipe, and support frames are set on both sides of the spray pipe. Roller seats are set at the bottom of the support frames. One end of the spray pipe is connected to a water pipe through a hose. When in use, simply push the support frames on both sides, and the rollers on the roller seats will roll on the ground, spraying water through the evenly distributed nozzles. Water can be evenly sprayed onto the concrete surface. However, the length of the spray pipe is fixed, and since the width of different roads and bridges varies, its practicality is not high. Utility Model Content
[0003] The purpose of this invention is to provide a concrete pavement maintenance device to solve the problems mentioned in the background art.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0005] A concrete pavement maintenance device includes a vehicle body, a storage tank installed on the upper side of the vehicle body, a pump body installed inside the storage tank, a water outlet pipe connected to the output end of the pump body, a first spray pipe connected to the lower side of the vehicle body, the water outlet pipe being connected to the first spray pipe through a pipe, and an extended spraying mechanism also provided on the vehicle body.
[0006] The extended spraying mechanism includes a rectangular shell fixed to the upper side of the vehicle body. Two horizontally distributed screws are rotatably mounted inside the rectangular shell. A drive assembly is provided at the right end of the two screws, which can drive the two screws to rotate in opposite directions. A slider is threaded to the opposite end of each of the two screws. A second spray pipe is connected to the lower end of each slider. The second spray pipe is connected to the water outlet pipe through a hose. Several evenly distributed water outlet pipes are provided at the bottom of the second spray pipe. The water outlet pipes are equipped with a sealing assembly. An abutment block matching the sealing assembly is fixed in the middle of the rectangular shell.
[0007] The drive assembly includes two gears connected to the ends of the screws, the two gears meshing with each other, a bracket fixed to the side wall of the rectangular shell, a motor mounted on the bracket, and the output shaft of the motor being drivenly connected to one of the gears.
[0008] The sealing assembly includes a fixed base fixed to the upper side of the water outlet pipe. The fixed base has a sliding groove, and a sealing block is slidably connected to the sliding groove. A spring is provided between one side of the sealing block and the side wall of the sliding groove. A sliding rod is connected to the other side of the sealing block. The sliding rod slides through the fixed base and is connected to a pushing block. A bevel is machined on one side of the pushing block, and the end of the pushing block abuts against the abutting block.
[0009] The rectangular shell has a limiting groove on its side wall, and the slider has a limiting block that slides in the limiting groove fixed on its side wall.
[0010] A push rod is connected to the rear side of the vehicle body.
[0011] This invention, through an expanded design of the spraying mechanism, allows for flexible adjustment of the spraying range based on the width of the road surface. The combination of two screws and a slider, along with the drive of a motor, enables the second spray nozzle to extend or retract smoothly and precisely to both sides of the vehicle body, adapting to the maintenance needs of roads of different widths. Attached Figure Description
[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of a concrete pavement curing device according to the present invention. Figure 1 ;
[0014] Figure 2 This is a schematic cross-sectional view of an embodiment of a concrete pavement curing device according to the present invention. Figure 1 ;
[0015] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0016] Figure 4 This is a schematic cross-sectional view of an embodiment of a concrete pavement curing device according to the present invention. Figure 2 ;
[0017] Figure 5 for Figure 4 Enlarged structural diagram at point B;
[0018] Figure 6 This is a schematic diagram of the structure of an embodiment of a concrete pavement curing device according to the present invention. Figure 2 .
[0019] The symbols for the main components are explained below:
[0020] Vehicle body 1, push rod 101, storage tank 11, water outlet pipe 12, first nozzle 13, rectangular shell 2, screw 21, gear 211, bracket 212, motor 213, slider 22, second nozzle 23, hose 24, water outlet pipe 25, fixed seat 251, slide groove 252, sealing block 253, spring 254, slide rod 255, push block 256, abutment block 26, limit groove 3. Detailed Implementation
[0021] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] like Figure 1-6 As shown, a concrete pavement maintenance device of the present invention includes a vehicle body 1, a storage tank 11 installed on the upper side of the vehicle body 1, a pump body installed inside the storage tank 11, a water outlet pipe 12 connected to the output end of the pump body, a first spray pipe 13 connected to the lower side of the vehicle body 1, the water outlet pipe 12 being connected to the first spray pipe 13 through a pipe, and the vehicle body 1 is also provided with an extended spraying mechanism.
[0023] The extended spraying mechanism includes a rectangular shell 2 fixed to the upper side of the vehicle body 1. Two horizontally distributed screws 21 are rotatably mounted inside the rectangular shell 2. A drive assembly is provided at the right end of the two screws 21, which can drive the two screws 21 to rotate in opposite directions. A slider 22 is threadedly connected to the opposite end of the two screws 21. A second spray pipe 23 is connected to the lower end of the two sliders 22. The second spray pipe 23 is connected to the water outlet pipe 12 through a hose 24. Several evenly distributed water outlet pipes 25 are provided at the bottom of the second spray pipe 23. The water outlet pipes 25 are equipped with a sealing assembly. An abutment block 26 matching the sealing assembly is fixed in the middle of the rectangular shell 2.
[0024] The drive assembly includes two screws 21 connected to the ends of gears 211, the two gears 211 meshing with each other, a bracket 212 fixed to the side wall of the rectangular shell 2, a motor 213 mounted on the bracket 212, and the output shaft of the motor 213 being connected to one of the gears 211 in a transmission connection.
[0025] The sealing assembly includes a fixed base 251 fixed on the upper side of the water outlet pipe 25. The fixed base 251 has a groove 252. The groove 252 is slidably connected to a sealing block 253. A spring 254 is provided between one side of the sealing block 253 and the side wall of the groove 252. The other side of the sealing block 253 is connected to a sliding rod 255. The sliding rod 255 slides through the fixed base 251 and is connected to a pushing block 256. One side of the pushing block 256 is machined with a bevel. The end of the pushing block 256 abuts against the abutting block 26.
[0026] When the second nozzle 23 is located inside the rectangular shell 2, the pushing block 256 abuts against the abutting block 26, and at this time the sealing block 253 in the slide 252 blocks the water outlet pipe 25.
[0027] During use, the storage tank 11 contains clean water for road surface maintenance. Workers push the vehicle 1 to the area requiring maintenance, activate the pump in the storage tank 11 to deliver the clean water to the outlet pipe 12, and finally through the pipe into the first spray pipe 13 to spray onto the road surface below the vehicle, thus maintaining the concrete pavement. The spraying area is adjusted according to the width of the road surface; that is, the motor 213 is started to drive the gears 211 to rotate. Since the two gears 211 mesh with each other, their rotation directions will be opposite. The two screws 21 rotate in opposite directions, causing the slider 22 connected to them to slide from one end of the screw 21 to the other end. This allows the second nozzle 23 to be gradually moved out of the rectangular shell 2 and extended to both sides of the vehicle body 1. When the pushing block 256 disengages from the abutting block 26, the elastic force of the spring 254 will push the sealing block 253 to slide away from the water outlet pipe 25. In this way, the maintenance agent will flow from the hose 24 and the second nozzle 23 into the water outlet pipe 25, and finally be sprayed out from the nozzle at the end of the water outlet pipe 25, thus achieving maintenance of roads of different widths.
[0028] When the second nozzle 23 retracts into the rectangular shell 2, the inclined surface of the push block 256 will contact the abutment block 26, pushing the push block 256 to slide towards the fixed seat 251, and driving the sealing block 253 to re-seal the water outlet pipe 25 through the slide rod 255.
[0029] A limiting groove 3 is provided on the side wall of the rectangular shell 2, and a limiting block is fixed on the side wall of the slider 22, which slides in the limiting groove. The slider 22 slides in the limiting groove 3 through the limiting block, which limits the slider 22 so that it can only slide horizontally along the screw axis.
[0030] A push rod 101 is connected to the rear of the vehicle body 1; this facilitates the staff to push the vehicle body 1 to carry out maintenance work.
[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A concrete pavement curing device, comprising a vehicle body, characterized in that: A storage tank is installed on the upper side of the vehicle body, and a pump body is installed inside the storage tank. The output end of the pump body is connected to a water outlet pipe. A first spray pipe is connected to the lower side of the vehicle body. The water outlet pipe is connected to the first spray pipe through a pipe. The vehicle body is also equipped with an extended spraying mechanism. The extended spraying mechanism includes a rectangular shell fixed to the upper side of the vehicle body. Two horizontally distributed screws are rotatably mounted inside the rectangular shell. A drive assembly is provided at the right end of the two screws, which can drive the two screws to rotate in opposite directions. A slider is threaded to the opposite end of each of the two screws. A second spray pipe is connected to the lower end of each slider. The second spray pipe is connected to the water outlet pipe through a hose. Several evenly distributed water outlet pipes are provided at the bottom of the second spray pipe. The water outlet pipes are equipped with a sealing assembly. An abutment block matching the sealing assembly is fixed in the middle of the rectangular shell.
2. The concrete pavement curing equipment according to claim 1, characterized in that: The drive assembly includes two gears connected to the ends of the screws, the two gears meshing with each other, a bracket fixed to the side wall of the rectangular shell, a motor mounted on the bracket, and the output shaft of the motor being drivenly connected to one of the gears.
3. The concrete pavement curing equipment according to claim 1, characterized in that: The sealing assembly includes a fixed base fixed to the upper side of the water outlet pipe. The fixed base has a sliding groove, and a sealing block is slidably connected to the sliding groove. A spring is provided between one side of the sealing block and the side wall of the sliding groove. A sliding rod is connected to the other side of the sealing block. The sliding rod slides through the fixed base and is connected to a pushing block. A bevel is machined on one side of the pushing block, and the end of the pushing block abuts against the abutting block.
4. The concrete pavement curing equipment according to claim 1, characterized in that: The rectangular shell has a limiting groove on its side wall, and the slider has a limiting block that slides in the limiting groove fixed on its side wall.
5. The concrete pavement curing equipment according to claim 1, characterized in that: A push rod is connected to the rear side of the vehicle body.