Road concrete protective fence maintenance device and method

Abstract

The invention relates to a road concrete protective fence maintenance device and method. The road concrete protective fence maintenance device comprises a maintenance device and a collection device. The maintenance device comprises a maintenance cover, a spraying pipe, a spraying head and moving wheels; the shape of the maintenance cover is matched with that of the protective fence, a spraying pipe is arranged in the maintenance cover, the spraying pipe is connected with water supply equipment, and a plurality of spraying heads facing the protective fence are arranged on the spraying pipe at intervals; the moving wheels are arranged on the maintenance cover; the collecting device comprises a collecting tank, a backflow pipe, a filter and a backflow pump, the collecting tank is arranged at the bottom of the maintenance cover and tightly attached to the bottom of the protective fence, the filter is arranged on one side of the collecting tank and connected with the backflow pump through a water pipe, and the backflow pump pumps a filtered water source into water supply equipment. Through the closed maintenance cover and the bottom collecting tank, the telescopic section is combined to adapt to an arc shape, a tractor automatically moves and turns over for loading and unloading, efficient, water-saving and environment-friendly maintenance is achieved, the quality is remarkably improved, the cost is reduced, and the device is suitable for various scenes.

Description

Technical Field

[0001] This invention relates to the field of highway maintenance technology, specifically to a highway concrete guardrail maintenance device and method. Background Technology

[0002] Concrete guardrails, as core structures in road engineering responsible for collision protection and guidance, are directly affected by their curing quality, which impacts concrete strength development, durability, and structural safety. According to construction specifications, concrete must immediately enter a moisture-curing phase after final setting. Maintaining a moist surface environment inhibits shrinkage cracks and ensures sufficient cement hydration. Inadequate curing can lead to rapid early water loss from the concrete, potentially causing plastic cracking, which in severe cases can reduce structural load-bearing capacity and threaten road operational safety.

[0003] Currently, the traditional curing process in the engineering field, combining manual watering with geotextile covering, is widely used. However, this technology has significant limitations: specifically, when manually spraying with a handheld hose, the water flow tends to run rapidly down the surface of the guardrail, making it difficult to effectively cover the narrow top area where it meets the facade, leading to insufficient local humidity and an increased risk of shrinkage and cracking. Simultaneously, the water flow directly washes over the guardrail surface, and a large amount of unabsorbed water carries concrete residue to the ground, forming mud deposits that not only pollute the construction site but also waste water resources. During operation, construction workers need to repeatedly adjust the spraying position over extended periods, especially in water-scarce sections where difficulty in obtaining water forces a reduction in the frequency of maintenance, further exacerbating the risk of concrete dehydration. Furthermore, the water flow can easily damage the geotextile covering layer, requiring frequent work stoppages for repairs and extending the overall construction period.

[0004] In summary, the existing manual watering and geotextile process suffers from problems such as uneven water flow leading to localized dryness, water waste and pollution, low manual efficiency, difficulty in obtaining water in water-scarce sections, and easy damage to the cover layer requiring work stoppage for repair. These issues seriously affect maintenance quality and construction cycle. Therefore, it is necessary to study a highway concrete guardrail maintenance device. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a highway concrete guardrail maintenance device and method, which effectively solves the problems of uneven water flow leading to local dryness, water waste and pollution, low labor efficiency, difficulty in obtaining water in water-scarce road sections, and easy damage to the cover layer requiring work stoppage for repair in existing construction methods, which seriously affect the maintenance quality and construction cycle.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a highway concrete guardrail maintenance device, comprising a maintenance device and a collection device; the maintenance device includes a maintenance cover, a spray pipe, spray heads, and movable wheels; the maintenance cover is adapted to the shape of the guardrail, and a spray pipe is installed inside it, the spray pipe is connected to a water supply device, and multiple spray heads facing the guardrail are spaced apart on the spray pipe; the movable wheels are installed on the maintenance cover and are used to support the maintenance cover to move on the guardrail; the collection device includes a collection trough, a return pipe, a filter, and a return pump, the collection trough is located at the bottom of the maintenance cover and is close to the bottom of the guardrail, a filter is installed on one side of the collection trough, the filter is connected to the return pump via a water pipe, and the return pump pumps the filtered water into the water supply device.

[0007] Furthermore, the filter includes a water collection tank, a filter layer, and a discharge port. The water collection tank is connected to the end of the collection tank. The filter layer is set inside the water collection tank, dividing the water collection tank into a filtration zone and a return zone. A discharge port and a return port are respectively provided in the filtration zone and the return zone. The discharge port is equipped with a discharge valve, and the return port is connected to a return pump via a pipeline.

[0008] Furthermore, the part of the maintenance cover that contacts the guardrail is provided with a rubber layer, and the part of the collection trough that contacts the guardrail is provided with a water-absorbing part.

[0009] Furthermore, the maintenance cover includes a telescopic section, a frame section, and a side maintenance cover; the telescopic section and the frame section are alternately arranged to form a maintenance body that can be folded and retracted, and a side maintenance cover is provided on the side of the maintenance body; the spray pipe is arranged on the frame section.

[0010] Furthermore, the movable wheel also includes an inner support wheel and a side support wheel. The inner support wheel is provided to support the upper part of the guardrail, and the side support wheel is arranged vertically on the side of the guardrail. Both the inner support wheel and the side support wheel are rotatably mounted on a support, and the support is fixed to the maintenance cover.

[0011] Furthermore, the water supply equipment is installed on the curing cover, and the moving wheels are installed on the front and rear sides of the curing cover and are connected to the drive motor to realize the self-movement of the curing cover.

[0012] Furthermore, the maintenance cover includes a first maintenance cover, a second maintenance cover, and a spacing adjustment assembly. The upper parts of the first and second maintenance covers are respectively provided with a first adjustment seat and a second adjustment seat. The spacing adjustment assembly includes a reverse threaded screw, a limiting rod, and a driving part. The limiting rod is slidably fitted onto the first and second adjustment seats. The reverse threaded screw is threadedly connected to the first and second adjustment seats and is drivenly connected to the driving part, thereby allowing the spacing between the first and second adjustment seats to be adjusted.

[0013] Furthermore, a fixing frame is provided on the outer side of the first curing cover, a first adjusting seat is fixed to the upper part of the first curing cover, the upper part of the second curing cover is hinged to the second adjusting seat, the fixing frame extends to the outer side of the second curing cover, and a guide wheel and a winding roller are provided on its upper part. A lifting point is provided at the lower part of the second curing cover, a lifting rope is fixed to the lifting point, the lifting rope is wound onto the winding roller via the guide wheel, and the winding roller is driven by a motor.

[0014] Furthermore, it also includes a tractor, a lifting platform, a fixed platform, a water tank, a power supply, a steering motor, and a spline sleeve; a drive rod is fixed to one side of the fixed frame; a lifting cylinder and a positioning rod are fixed on the tractor; the lifting platform is slidably mounted on the positioning rod and fixed to the upper part of the lifting cylinder; the fixed platform is fixed to the upper part of the positioning rod and has a steering motor, a water tank, and a power supply mounted on it; a spline sleeve is rotatably mounted on the fixed platform; the drive rod is adapted to be mounted in the spline sleeve via a spline shaft; a steering gear is mounted on the upper part of the spline sleeve; and a drive gear that meshes with the steering gear is mounted on the steering motor.

[0015] A method for maintaining highway concrete guardrails, using the aforementioned highway concrete guardrail maintenance device, includes the following steps: Step 1: With the protective cover in the unfolded state, the vehicle being towed moves it to one side of the guardrail. Step 2: The take-up roller rotates, causing the unfolded part of the curing cover to flip downwards; Step 3: Adjust the spacing of the maintenance covers so that the moving wheels rest against the top of the guardrail; Step 4: Start the water supply equipment and towing vehicle, move along the extension direction of the guardrail, and use the high-pressure water sprayed from the nozzles to spray and maintain the guardrail. Step 5: The spray water flows along the guardrail and returns to the collection tank, where it is then returned to the water supply equipment for reuse by the filter and return pump. Step 6: After the maintenance work is completed, turn off the water supply equipment, start the take-up roller to swing the maintenance cover from the flipped state to one side, and then the tractor moves to the outside to remove the maintenance cover from the guardrail.

[0016] The beneficial effects of the above technical solution are as follows: In view of the problems existing in the maintenance technology of highway concrete guardrails, such as uneven water flow leading to local drying, water waste and pollution, low labor efficiency, and easy damage to the covering layer, the present invention provides a highway concrete guardrail maintenance device and method, which achieves precise spraying through a closed maintenance cover structure, and at the same time uses the collection device at the bottom to realize the recycling of water resources, reducing waste and pollution.

[0017] Specifically, the curing cover in this invention is adapted to the shape of the guardrail and integrates spray pipes and multi-directional spray heads inside to form a semi-enclosed spraying environment. This ensures that high-pressure water flow evenly covers the top, facade and junction of the guardrail, eliminates the blind spots of traditional manual spraying, effectively inhibits concrete shrinkage cracks, improves the fullness of cement hydration reaction, and ensures structural durability and load-bearing capacity.

[0018] The bottom collection trough is flush with the guardrail for rapid recovery of spray water; the filter separates impurities through the filtration layer, and the return pump pumps the filtered water back into the water supply equipment. This invention, through its structure, significantly improves the water resource reuse rate (reducing the frequency of water replenishment), avoids mud pollution of the ground, and is particularly suitable for water-scarce road sections, reducing construction costs and environmental impact.

[0019] To adapt to the shape of guardrails, the maintenance cover of this invention adopts a combination of telescopic sections, frame sections, and side maintenance covers, which can undergo certain shape changes to adapt to curved or straight guardrails. The spacing adjustment component (reverse threaded screw) adjusts the width of the maintenance cover to accommodate guardrails of different thicknesses. At the same time, the tractor is equipped with a lifting platform, steering motor, and water tank, which are linked to the drive rod through a spline sleeve to realize the lifting, steering, and translation of the maintenance cover. Combined with the split-type flip-up maintenance cover, it is easy to mount the maintenance cover on the guardrail, reduce manual intervention, and improve work efficiency.

[0020] Therefore, this invention provides a highway concrete guardrail maintenance device and method, addressing the problems of uneven water coverage, water waste, and low construction efficiency inherent in traditional manual watering maintenance. Through innovative design, it achieves efficient, water-saving, and environmentally friendly maintenance operations. Specifically, the core of the device consists of a maintenance unit and a collection unit: the maintenance cover is adapted to the shape of the guardrail, integrating spray pipes and multi-directional spray heads to form a semi-enclosed spray environment, ensuring that high-pressure water flow evenly covers the top, facade, and junctions, eliminating blind spots and effectively inhibiting concrete shrinkage cracks; the bottom collection tank is close to the guardrail, quickly recovering the sprayed water, which is then filtered and pumped back into the water supply equipment by a return pump, achieving water resource recycling and reducing the frequency of water replenishment and mud pollution. The maintenance cover combines telescopic sections and frame sections to adapt to curved or straight guardrails. The spacing adjustment component adjusts the width of the maintenance cover via a reverse-threaded screw to accommodate guardrails of different thicknesses. Combined with a lifting platform, steering motor, and water tank mounted on a tractor, the maintenance cover achieves automated movement, lifting, and steering. A second maintenance cover is flipped via a take-up roller, simplifying the loading and unloading process. This method, through closed-loop spraying, water recycling, adaptive structure, and automated operation, significantly improves maintenance quality (uniform wetting, reducing the risk of shrinkage), shortens the construction cycle (reducing manual adjustments and downtime for repairs), and lowers construction costs. It is applicable to diverse scenarios such as highways and bridges, demonstrating significant technical, economic, and social benefits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 Front view structural diagram; Figure 3 This is a schematic diagram of the connection structure of the water supply equipment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the curing cover; Figure 5 This is a schematic diagram of a telescopic maintenance cover structure; Figure 6 A schematic diagram of the structure for the collection tank; Figure 7 A schematic diagram of the filter implementation structure; Figure 8 A schematic diagram of the structure for the traction-type maintenance cover.

[0022] Reference numerals: 1-Guardrail, 2-Cure cover, 21-First curing cover, 22-Second curing cover, 23-First adjusting seat, 24-Second adjusting seat, 25-Reverse threaded screw, 26-Drive unit, 27-Frame section, 28-Telescopic section; 3-Moving wheel, 4-Water tank, 5-Rubber layer, 6-Water supply equipment, 7-Collection trough, 71-Water suction unit, 72-Filtration zone, 73-Filtration layer, 74-Return zone, 75-Return pipe, 8-Spray pipe, 9-Spray head, 10-Inner support wheel, 11-Side support wheel, 12-Fixed frame, 13-Guide wheel, 14-Hanging rope, 15-Take-up roller, 16-Drive rod, 17-Tractor, 171-Lifting cylinder, 172-Lifting platform, 173-Positioning rod, 174-Fixed platform, 175-Spline sleeve, 176-Spline shaft, 18-Steering motor. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: This example aims to provide a highway concrete guardrail maintenance device, mainly used for the maintenance of concrete guardrails. Existing construction methods suffer from the following problems: when spraying with a handheld hose, water tends to flow rapidly down the guardrail surface, resulting in uneven coverage at the junction of the narrow top area and the facade, exacerbating the risk of localized shrinkage cracking; a large amount of unabsorbed water carries concrete residue and washes it to the ground, wasting water resources and causing mud pollution; construction workers need to repeatedly adjust the spraying position, and in water-scarce sections, the frequency of maintenance is forced to be reduced due to water shortages, further increasing the risk of concrete dehydration; simultaneously, water erosion easily damages the geotextile covering layer, requiring frequent work stoppages for repairs, seriously affecting construction efficiency and schedule. Therefore, it is necessary to research a highway concrete guardrail maintenance device.

[0024] like Figure 1-4As shown, a highway concrete guardrail maintenance device includes a maintenance device and a collection device. In this embodiment, the maintenance device includes a maintenance cover 2, a spray pipe 8, a spray head 9, and a moving wheel 3. The maintenance cover 2 is adapted to the shape of the guardrail 1, and a spray pipe 8 is installed inside it. In specific implementation, the overall shape of the maintenance cover is V-shaped, with the upper part connected, the lower part open, the outer side closed, and the inner side open. The spray pipe 8 is fixed on the inner side by a mounting seat. One end of the spray pipe 8 is closed, and the other end extends out of the maintenance cover and is connected to a water supply device. The water supply device 5 includes a water tank, a pump, and a valve. The outlet of the water tank is connected to the spray pipe 8 through the pump and the valve. Multiple spray heads 9 are arranged at intervals on the spray pipe 8 facing the guardrail 1. High-pressure water is supplied to the guardrail 1 through the spray heads 9 to facilitate maintenance.

[0025] To enable equipment movement, in this embodiment, the moving wheel 3 is mounted on the curing cover and used to support the curing cover as it moves along the guardrail 1. To further ensure the movement, support, and positioning of the equipment, the moving wheel 3 in this embodiment also includes an inner support wheel and a side support wheel. The inner support wheel is positioned to support the upper part of the guardrail 1, and the side support wheel is arranged vertically on the side of the guardrail 1. Both the inner support wheel and the side support wheel are rotatably mounted on a support, which is fixed to the curing cover. Specifically, the inner support wheel supports the upper platform of the guardrail 1, and the side support wheel rests against the upper side plane of the guardrail 1. Through this structure, the curing cover can be positioned in a clamping manner to prevent displacement of the curing cover while ensuring the spraying interval.

[0026] like Figure 6 As shown, the collection device includes a collection tank 7, a return pipe 75, a filter, and a return pump. The collection tank 7 is located at the bottom of the maintenance cover and is in close contact with the bottom of the guardrail 1. The part of the collection tank 7 that contacts the guardrail 1 is provided with a water-absorbing part 71, such as an absorbent sponge, to facilitate the rapid collection of water from the surface of the guardrail 1. A filter is provided on one side of the collection tank 7. The filter is connected to the return pump via a water pipe, and the return pump pumps the filtered water into the water supply equipment 5.

[0027] In specific implementation, such as Figure 7 As shown, the filter includes a water collection tank, a filter layer 73, and a discharge port. The water collection tank is connected to the end of the collection tank 7. The filter layer 73 is set in the water collection tank, dividing the water collection tank into a filtration zone 72 and a return zone 74. A discharge port and a return port are respectively provided in the filtration zone 72 and the return zone 74. The discharge port is equipped with a discharge valve. The return port is connected to a return pump through a pipeline. The discharge valve can quickly remove the filtered impurities. The water is quickly filtered through the filter screen and quickly recycled through the water pump. The model and power of the water pump are selected according to the actual situation to ensure the reliability of water recycling.

[0028] In one implementation method, the water supply device 5 is mounted on the curing cover, and the movable wheels 3 are located on the front and rear sides of the curing cover and are connected to the drive motor to enable the curing cover to move independently. This self-propelled construction method allows the curing cover, carrying the water supply device 5, to move along the guardrail 1. Specifically, it is preferably suitable for linear implementation structures. In use, the curing cover is erected on top of the guardrail 1, water is added to the water tank, and then the movable wheels 3 are activated for linear movement.

[0029] The main concept of this embodiment is to set up collection troughs 7 on both sides of the bottom of the curing cover and to fit them tightly to the surface of the guardrail 1, so as to collect the spray water from the bottom, avoid the spray water from flowing on the construction ground and causing serious pollution to the construction environment, and at the same time effectively recycle water resources, and reuse them after filtration, reducing water waste and directly using them for on-site spraying operations, reducing the number of times the water source needs to be replenished, increasing the length of a single operation, and improving construction efficiency.

[0030] Example 2 further illustrates the implementation structure of the curing cover so that it can adapt to certain shape changes.

[0031] In this embodiment, as shown Figure 5 As shown, the maintenance cover includes a telescopic section 28, a frame section 27, and a side maintenance cover. In specific implementation, the telescopic section 28 is made of flexible rubber or waterproof fabric and is used to seal the space between the frame sections 27. The telescopic section 28 and the frame section 27 are alternately arranged to form a foldable and retractable maintenance body. Side maintenance covers are provided on the sides of the maintenance body to protect the sides. The spray pipe 8 is set on the frame section 27. The part of the maintenance cover that contacts the guardrail 1 is provided with a rubber layer, which achieves sealing. Through the above structure, the maintenance body can have a certain degree of deformation. The multiple frame sections 27 are independent of each other and are connected by the deformable telescopic section 28, which can adapt to the curved shape of the guardrail 1.

[0032] To accommodate shape changes, the collection trough 7 has an upper opening made of rubber material and a bottom structure that slopes to one or both sides.

[0033] In this structure, the water tank is mounted separately on a traveling tractor, and the tractor simultaneously drives the maintenance cover to move. In specific implementation, three frame segments 27 are used as the basis. The moving wheel 3 adopts the implementation method in Example 1, including an inner support wheel and a side support wheel. In implementation, the side support wheel is a flexible structure or an elastically displaceable structure. Specifically, the flexible structure adopts a rubber layer arranged on the outside of the moving wheel 3, and the elastically displaceable structure adopts a spring, slider and groove structure to realize the adaptive deformation of the side support wheel, so that this embodiment can adapt to the trend change of the guardrail 1.

[0034] Example 3 further illustrates the implementation structure of the curing cover and provides a construction method.

[0035] like Figure 4 As shown in the figure, in this embodiment, the maintenance cover includes a first maintenance cover 21, a second maintenance cover 22, and a spacing adjustment component. The upper parts of the first maintenance cover 21 and the second maintenance cover 22 are respectively provided with a first adjustment seat 23 and a second adjustment seat 24. The spacing adjustment component can realize the spacing adjustment of the first maintenance cover 21 and the second maintenance cover 22, thereby adapting to the different thickness requirements of the guardrail 1. At the same time, the clamping degree of the first maintenance cover 21 and the second maintenance cover 22 on the guardrail 1 can be adjusted according to the actual situation.

[0036] As an example, in this embodiment, the spacing adjustment assembly includes a reverse-threaded screw 25, a limiting rod, and a driving part 26. The limiting rod is slidably fitted onto the first adjusting seat 23 and the second adjusting seat 24. The reverse-threaded screw 25 is threadedly connected to the first adjusting seat 23 and the second adjusting seat 24 and is connected to the driving part 26 for transmission, thereby allowing the spacing between the first adjusting seat 23 and the second adjusting seat 24 to be adjusted. The driving part 26 is a motor to facilitate the control of electrical signals. The reverse-flow motion of the reverse-threaded screw 25 is driven by a servo motor, and the spacing between the first adjusting seat 23 and the second adjusting seat 24 is adjusted by the limiting rod, thereby achieving the spacing adjustment between the first curing cover 21 and the second curing cover 22. This embodiment is only used as an example for illustration; other spacing adjustment methods can be substituted equivalently.

[0037] In this embodiment, the first curing cover 21 is in a fixed state, and the second curing cover 22 is in a reversed state, which facilitates the assembly of the curing cover onto the guardrail 1. Specifically, a fixing frame 12 is provided on the outer side of the first curing cover 21, and a first adjusting seat 23 is fixed to the upper part of the first curing cover 21. The upper part of the second curing cover 22 is hinged to the second adjusting seat 24. The fixing frame 12 extends to the outer side of the second curing cover 22 and is provided with a guide wheel 13 and a winding roller on its upper part. A lifting point is provided at the lower part of the second curing cover 22, and a lifting rope 14 is fixed to the lifting point. The lifting rope 14 is wound onto the winding roller 15 via the guide wheel 13. The winding roller 15 is connected to a motor and realizes its forward and reverse rotation. Forward rotation winds up, and reverse rotation does not wind up the rope. The second curing cover swings downward by its own weight. In this embodiment, the first curing cover 21 is installed using a fixing frame 12, and a guide wheel 13 is configured at the far end of the fixing frame 12. The second curing cover 22 is flipped on the fixing frame 12 by the winding of the traction rope, so that it can rotate 90 degrees from the vertical state to the horizontal state. That is, the curing cover has two states: a figure-7 shape and a figure-eight shape. The figure-7 shape is used for two working conditions: installation and removal, and the figure-eight shape is used for the curing working condition.

[0038] Example 4: This example combines the structure of Example 3 to provide a construction body with external traction.

[0039] like Figure 8 As shown in the figure, the construction body provided in this embodiment also includes a tractor 17, a lifting platform 172, a fixed platform 174, a water tank, a power supply, a steering motor 18, and a spline sleeve 175; in conjunction with the content of embodiment 3, a drive rod 16 is fixed on one side of the fixed frame 12; a lifting cylinder 171 and a positioning rod 173 are fixed on the tractor 17, the lifting platform 172 is slidably fitted on the positioning rod 173 and fixed on the upper part of the lifting cylinder 171, the fixed platform 174 is fixed on the upper part of the positioning rod, and a steering motor 18, a water tank, and a power supply are provided on it; a spline sleeve 175 is rotatably provided on the fixed platform 174, the drive rod 16 is adaptedly fitted into the spline sleeve 175 via a spline shaft 176, a steering gear is provided on the upper part of the spline sleeve 175, and a drive gear meshing with the steering gear is provided on the steering motor 18.

[0040] Through the above structure, the lifting and rotating actions of the fixing frame 12 and the first and second maintenance covers 21 and 22 mounted on it can be realized. At the same time, combined with the moving function of the tractor 17, the translational movement of the maintenance covers can be realized. In combination with the above functions, this embodiment also provides a method for maintaining highway concrete guardrail 1.

[0041] The specific implementation includes the following steps: Step 1: With the protective cover in the unfolded state, it is moved by the towing vehicle 17 to one side of the guardrail 1. Step 2: The take-up roller 15 rotates, causing the unfolded part of the curing cover to flip downwards; Step 3: Adjust the spacing of the maintenance cover so that the moving wheel 3 rests against the upper part of the guardrail 1; Step 4: Start the water supply equipment 5 and the tractor 17, move them along the extension direction of the guardrail 1, and use the high-pressure water sprayed from the nozzles to spray and maintain the guardrail 1. Step 5: The spray water flows along the guardrail 1 and flows back into the collection tank 7. Under the action of the filter and the return pump, it flows back to the water supply equipment 5 for reuse. Step 6: After the maintenance work is completed, turn off the water supply equipment 5, start the take-up roller 15 to swing the maintenance cover from the flipped state to one side, and then the tractor 17 moves outward to make the maintenance cover detach from the guardrail 1.

[0042] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention is to achieve efficient, water-saving, and environmentally friendly maintenance through this enclosed maintenance cover and bottom collection tank. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A highway concrete guardrail maintenance device, characterized in that: The system includes a maintenance device and a collection device. The maintenance device includes a maintenance cover, a spray pipe, spray heads, and casters. The maintenance cover is adapted to the shape of the guardrail and has a spray pipe inside. The spray pipe is connected to a water supply device, and multiple spray heads facing the guardrail are spaced apart on the spray pipe. The casters are mounted on the maintenance cover and are used to support the maintenance cover as it moves on the guardrail. The collection device includes a collection tank, a return pipe, a filter, and a return pump. The collection tank is located at the bottom of the maintenance cover and is close to the bottom of the guardrail. A filter is located on one side of the collection tank. The filter is connected to the return pump via a water pipe, and the return pump pumps the filtered water into the water supply device.

2. The highway concrete guardrail maintenance device according to claim 1, characterized in that: The filter includes a water collection tank, a filter layer, and a discharge port. The water collection tank is connected to the end of the collection tank. The filter layer is set inside the water collection tank, dividing the water collection tank into a filtration zone and a return zone. A discharge port and a return port are respectively set in the filtration zone and the return zone. The discharge port is equipped with a discharge valve, and the return port is connected to a return pump via a pipeline.

3. The highway concrete guardrail maintenance device according to claim 1, characterized in that: The part of the curing cover that contacts the guardrail is provided with a rubber layer, and the part of the collection trough that contacts the guardrail is provided with a water-absorbing part.

4. The highway concrete guardrail maintenance device according to claim 1, characterized in that: The maintenance cover includes a telescopic section, a frame section, and a side maintenance cover; the telescopic section and the frame section are alternately arranged to form a maintenance body that can be folded and retracted, and a side maintenance cover is provided on the side of the maintenance body; the spray pipe is provided on the frame section.

5. The highway concrete guardrail maintenance device according to claim 1, characterized in that: The movable wheel also includes an inner support wheel and a side support wheel. The inner support wheel is provided to support the upper part of the guardrail, and the side support wheel is arranged vertically on the side of the guardrail. Both the inner support wheel and the side support wheel are rotatably mounted on a support, and the support is fixed to the maintenance cover.

6. The highway concrete guardrail maintenance device according to any one of claims 1-5, characterized in that: The water supply equipment is installed on the curing cover, and the moving wheels are installed on the front and rear sides of the curing cover and are connected to the drive motor to enable the curing cover to move on its own.

7. The highway concrete guardrail maintenance device according to any one of claims 1-5, characterized in that: The maintenance cover includes a first maintenance cover, a second maintenance cover, and a spacing adjustment assembly. The upper parts of the first and second maintenance covers are respectively provided with a first adjustment seat and a second adjustment seat. The spacing adjustment assembly includes a reverse threaded screw, a limiting rod, and a driving part. The limiting rod is slidably fitted onto the first and second adjustment seats. The reverse threaded screw is threadedly connected to the first and second adjustment seats and is drivenly connected to the driving part, thereby allowing the spacing between the first and second adjustment seats to be adjusted.

8. The highway concrete guardrail maintenance device according to claim 7, characterized in that: A fixing frame is provided on the outer side of the first curing cover. A first adjusting seat is fixed to the upper part of the first curing cover. The upper part of the second curing cover is hinged to the second adjusting seat. The fixing frame extends to the outer side of the second curing cover and is provided with a guide wheel and a winding roller on its upper part. A lifting point is provided at the lower part of the second curing cover. A lifting rope is fixed to the lifting point. The lifting rope is wound onto the winding roller via the guide wheel. The winding roller is driven by a motor.

9. The highway concrete guardrail maintenance device according to claim 8, characterized in that: It also includes a tractor, a lifting platform, a fixed platform, a water tank, a power supply, a steering motor, and a spline sleeve; a drive rod is fixed to one side of the fixed frame; a lifting cylinder and a positioning rod are fixed on the tractor; the lifting platform is slidably mounted on the positioning rod and fixed to the upper part of the lifting cylinder; the fixed platform is fixed to the upper part of the positioning rod and has a steering motor, a water tank, and a power supply mounted on it; a spline sleeve is rotatably mounted on the fixed platform; the drive rod is adapted to be mounted in the spline sleeve via a spline shaft; a steering gear is mounted on the upper part of the spline sleeve; and a drive gear meshing with the steering gear is mounted on the steering motor.

10. A method for maintaining highway concrete guardrails, using the highway concrete guardrail maintenance device as described in claim 8, characterized in that, Includes the following steps: Step 1: With the protective cover in the unfolded state, the vehicle being towed moves it to one side of the guardrail. Step 2: The take-up roller rotates, causing the unfolded part of the curing cover to flip downwards; Step 3: Adjust the spacing of the maintenance covers so that the moving wheels rest against the upper part of the guardrail; Step 4: Start the water supply equipment and towing vehicle, move along the extension direction of the guardrail, and use the high-pressure water sprayed from the nozzles to spray and maintain the guardrail. Step 5: The spray water flows along the guardrail and returns to the collection tank, where it is then returned to the water supply equipment for reuse by the filter and return pump. Step 6: After the maintenance work is completed, turn off the water supply equipment, start the take-up roller to swing the maintenance cover from the flipped state to one side, and then the tractor moves to the outside to remove the maintenance cover from the guardrail.

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