Automatic maintenance device for concrete guardrails

The concrete guardrail maintenance device, powered by solar energy and intelligently controlled, solves the problem of dependence on external power in existing technologies, achieving environmentally friendly and economical maintenance results and improving energy efficiency.

CN224675183UActive Publication Date: 2026-08-25CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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Patent Information

Application Number
CN202520585408.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-08-25
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing concrete guardrail maintenance systems rely on external power supplies, resulting in high electricity costs and environmental problems, especially in large-scale infrastructure projects where continuous power demand becomes an issue.

Method used

The power supply system, which combines solar panels, inverters, and battery packs, along with an intelligent controller and mobile module, enables automated spraying and movement, reducing reliance on external power.

Benefits of technology

It reduces the demand for traditional electricity, decreases the carbon footprint, improves energy efficiency, and achieves environmentally friendly, economical, and sustainable maintenance results.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224675183U_ABST
    Figure CN224675183U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of automatic maintenance devices of concrete guardrail, including support, the support inside is equipped with the groove for accommodating guardrail, the inner wall of the groove is equipped with spraying module and moving module, the support top surface is equipped with water tank and electric control box, the water tank and / or the electric control box top surface is equipped with solar panel, the groove inner top surface is equipped with travel module, the electric control box is equipped with inverter with solar panel electric control connection, the direct current input end of the inverter is electrically connected with battery pack;It further includes controller, the battery pack, the travel module, the spraying module are electrically connected with the controller electric control connection. Advantage lies in: whole device is combined by intelligent control, solar power supply, moving and spraying module etc., not only optimizes spraying operation, but also improves energy utilization efficiency, and reduces dependence on external power, with remarkable environmental protection, economic and sustainability advantage.
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Description

Technical Field

[0001] This utility model relates to the field of guardrail maintenance, specifically to an automatic maintenance device for concrete guardrails. Background Technology

[0002] Automatic curing of concrete guardrails aims to improve concrete strength, extend its service life, and ensure structural safety. This typically involves effective humidity and temperature control for a period after concrete pouring. During curing, the concrete surface needs to be kept moist to prevent excessive evaporation, especially in high-temperature environments. High temperatures accelerate moisture evaporation, leading to surface cracking and affecting strength and durability. Therefore, appropriate humidity can be maintained through methods such as spraying water, covering with damp burlap, or plastic film to prevent moisture loss during the curing process, thereby improving quality and lifespan.

[0003] Comparing this to Chinese utility model patent CN220246781U, which discloses an intelligent spraying device for a maintenance trolley, the device includes a maintenance cover with a U-shaped cross-section. A spraying mechanism is installed on the inner wall of the cover, which sprays the highway guardrails inside the cover during use. However, in practical applications, such equipment often relies on external power supplies, and prolonged operation can lead to high electricity costs. This is particularly problematic in large-scale infrastructure projects where continuous power demand is a significant issue.

[0004] Therefore, providing an automatic curing device for concrete guardrails is a problem worthy of research. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to optimize the spraying operation, improve energy utilization efficiency, and reduce dependence on external power, thus having significant environmental, economic and sustainability advantages. The purpose of this utility model is achieved as follows: This utility model provides an automatic curing device for concrete guardrails, including a support frame. The inner side of the support frame is provided with a trough for accommodating the guardrail. A spraying module and a moving module are installed on the inner wall of the trough. A water tank and an electrical control box are provided on the top surface of the support frame. The outlet end of the water tank is connected to the spraying module. A solar panel is provided on the top surface of the water tank and / or the electrical control box. A moving module that can travel on the top surface of the guardrail is provided on the top surface of the trough. An inverter that is electrically connected to the solar panel is provided in the electrical control box. A battery pack is electrically connected to the DC input end of the inverter. It also includes a controller, and the battery pack, the travel module, and the spray module are all electrically connected to the controller.

[0006] To further explain, the bracket includes a front frame and a rear frame, which are connected and fixed together by at least two connecting plates.

[0007] Further explanation is that the number of the moving modules is not less than one, and the moving module includes a sliding frame that slides with the connecting plate. The movable end of the sliding frame extends toward the inner side of the groove and is connected to a roller. It also includes a thrust spring disposed between the connecting plate and the roller to push the roller toward the guardrail. A screw rod is threadedly connected to the sliding frame, and the inner end of the screw rod contacts and supports the connecting plate.

[0008] To further explain, the spray module includes multiple atomizing nozzles, which are distributed on the inner top surface and vertical inner wall of the tank. The output end of the water tank is connected to the atomizing nozzles via a water pump, and the water pump is electrically connected to the controller.

[0009] To further explain, there are two water tanks, located on opposite sides of the electrical control box, and the two water tanks are connected by a pipe.

[0010] To further explain, the water tank is equipped with a liquid level sensor, which is electrically connected to the controller.

[0011] Further explanation is that it also includes a wireless communication control module electrically connected to the controller, and a monitoring camera is provided on the outside of the control box, the monitoring camera being electrically connected to the controller.

[0012] To further explain, the travel module includes a motor mounted on the electrical control box, the output end of the motor is provided with a working shaft, the movable end of the working shaft is connected to a travel wheel, and the motor is electrically connected to the controller.

[0013] To further explain, the bottom surface of the bracket is equipped with auxiliary wheels.

[0014] Positive and beneficial effects: The system can provide continuous energy through solar panels, which not only reduces the demand for traditional electrical energy, but also reduces the carbon footprint of the system operation, which is in line with the concept of environmental protection. The controller can electrically connect the travel module, spray module, etc., and automatically adjust the spraying and movement of the equipment according to the preset program or real-time feedback, reducing the burden of manual operation. The mobile module and travel module can help the device move smoothly on the outside of the guardrail. Combined with the spray module, it can achieve precise spraying of the guardrail, ensuring that the spraying effect is uniform and efficient. The spray module, travel module, water tank, electrical control box, solar panel and other structures are all integrated into one bracket. The design is compact and the structure is reasonable. It not only saves space, but also facilitates the installation and maintenance of the equipment. In summary, by combining intelligent control, solar power, and mobile and spraying modules, the entire system not only optimizes spraying operations but also improves energy efficiency and reduces dependence on external power, demonstrating significant environmental, economic, and sustainability advantages. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention from the right side. Figure 3 This is a schematic diagram of the bracket and movable installation structure in this utility model; Figure 4 This is a schematic diagram of the structure of the bracket in this utility model; Figure 5 This is a schematic diagram of the movable structure in this utility model; Figure 6 This is a schematic diagram of the installation structure of the water tank and electrical control box in this utility model; Figure 7 This is a flowchart of the circuit structure of this utility model. The diagram shows: bracket 1, front frame 101, rear frame 102, connecting plate 103, moving module 2, sliding frame 201, screw rod 202, roller 203, thrust spring 204, water tank 3, solar panel 4, inverter 401, battery pack 402, power distribution 403, electrical control box 5, spray module 6, atomizing nozzle 601, monitoring camera 7, traveling module 8, traveling wheel 801, working shaft 802, motor 803, and controller 9. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] First embodiment: See Figures 1-7As shown, this utility model provides an automatic curing device for concrete guardrails, including a support 1, which supports the entire device. The inner side of the support 1 has a trough for accommodating the guardrail. A spray module 6 and a moving module 2 are installed on the inner wall of the trough. A water tank 3 and an electrical control box 5 are located on the top surface of the support 1. The outlet of the water tank 3 is connected to the spray module 6, and the moving module 2 assists in its movement, cooperating with the spray module 6 to spray the guardrail. A solar panel 4 (JA Solar 320W monocrystalline silicon panel) is installed on the top surface of the water tank 3 and / or the electrical control box 5. The top surface of the trough has a moving module 8 that can travel on the top surface of the guardrail. The electrical control box 5 contains an inverter 401 electrically connected to the solar panel 4. The DC input terminal of the inverter 401 is electrically connected to a battery pack 402 (LG Chem RESU). 10H, then the solar panel 4 can provide renewable energy for the system, reducing dependence on external power. The battery pack 402 is connected to the inverter 401 to store the electrical energy converted from solar energy so that it can continue to supply power when there is no sunlight. The inverter 401 is a Victron EnergyMultiPlus 48 / 3000. It also includes a controller 9. The battery pack 402, the travel module 8, and the spray module 6 are all electrically connected to the controller 9. The controller 9 is an ESP32 / ESP8266.

[0018] During installation, the travel module 8 is installed at the bottom of the electrical control box 5, and the bracket 1 is fixed to ensure its stability. Then, the water tank 3, electrical control box 5, and travel module 2 are fixed to the bracket 1 in sequence. Next, the water tank 3 and the spray module 6 are connected by pipes, the water flow is checked for smoothness, and the spray module 6 is fixed to the bracket 1. Finally, the solar panel 4 is fixed at the top of the device. When installing the solar panel 4, it can be fixed to the top surface of the water tank 3, electrical control box 5, or bracket 1 to ensure that the solar panel 4 can absorb sunlight to the maximum extent and provide sufficient energy. Finally, the inverter 401, battery pack 402, travel module 8, controller 9, and solar panel 4 are connected by circuitry to complete the installation and fixing of the device.

[0019] After installation, check if the battery pack 402 is fully charged. If necessary, first convert the light energy into electrical energy through the solar panel 4, and then use the inverter 401 to store the electrical energy in the battery pack 402 to achieve the charging operation of the battery pack 402. Then, turn on the controller 9 to ensure that the circuit and equipment are properly connected.

[0020] In specific operation, the support 1 can be hoisted or lifted to align the trough on the support 1 with the guardrail. The support 1 is placed on the outside of the guardrail. After water is injected into the water tank 3, the traveling module 8 on the top surface of the trough contacts the top surface of the guardrail. The traveling module 8 is activated, and the auxiliary device moves on the top surface of the guardrail. The auxiliary device moves as a whole, and the moving module 2 on the inner wall of the trough contacts the inner wall of the guardrail, which can assist the device to move on the outside of the guardrail, so that the device can move stably. During the movement, the spray module 6 is activated to confirm its working status. The spray module 6 can spray the water in the water tank 3 to the outside of the guardrail to achieve the maintenance of the guardrail. In addition, the spray intensity and cleaning time can be adjusted as needed. In daily use, a timed cleaning plan can be set through the controller 9, and the working time of the spray module 6 and the travel module 8 can be set to determine the number of cleaning times and duration per day. If cleaning is required for a specific area, the position of the travel module can also be manually adjusted.

[0021] In a preferred embodiment, the solar panel 4 is supported by an angle-adjustable device, specifically a bolt and a telescopic cylinder for rotational connection. After loosening the bolt, the extended telescopic cylinder pushes the solar panel 4 to rotate, thereby adjusting the angle of the solar panel 4. After adjustment, the solar panel 4 is locked by tightening the bolt or nut, thus ensuring optimal energy acquisition. In addition, the spray intensity of the spray module 6 can be adjusted at any time to meet different cleaning needs.

[0022] To ensure long-term stable operation of the equipment, the solar panels need to be cleaned regularly to prevent dust or dirt from covering their surfaces and affecting energy absorption. Check the water tank 3 and pipes for blockages, ensure the spray module 6 is functioning properly, and regularly check the condition of the battery 402 to ensure it is charging correctly and has no signs of aging. Finally, check the operation of the travel module 8 to ensure its smooth movement.

[0023] The second embodiment differs from the first embodiment in that: In the structure of bracket 1, bracket 1 is generally portal-shaped. Bracket 1 includes a front frame 101 and a rear frame 102. The front frame 101 and the rear frame 102 have similar structures. See [link to relevant documentation]. Figure 3 , Figure 4As shown, the front frame 101 is composed of a series of rod-like structures. The front frame 101 and the rear frame 102 preferably adopt a symmetrical structure, which helps to ensure the stability of the device during travel. The front frame 101 and the rear frame 102 are connected and fixed by no less than two connecting plates 103. The setting of the connecting plates 103 provides structural stability, enabling the support 1 to withstand the support during equipment operation. Preferably, the bottom surface of the support 1 is equipped with auxiliary wheels 104. When the device is removed from the outside of the guardrail, it can be supported by the auxiliary wheels 104 to assist the device in traveling on the road surface. See Figure 1 , Figure 3 , Figure 5 As shown, the number of moving modules 2 is not less than one. Multiple moving modules 2 are used for support and auxiliary movement on both sides of the device. The moving module 2 includes a sliding frame 201 that slides with the connecting plate 103. The sliding frame 201 is frame-shaped or gate-shaped. The movable end of the sliding frame 201 extends towards the inside of the groove and is slidably connected to a roller 203. It also includes a thrust spring 204 disposed between the connecting plate 103 and the roller 203, which pushes the roller 203 toward the guardrail. A screw rod 202 is threadedly connected to the sliding frame 201. The inner end of the screw rod 202 contacts and supports the connecting plate 103. Specifically, manually rotating the screw rod 202 moves it outside the sliding frame 201, allowing for a larger adjustment of the position of the roller 203, bringing it closer to the guardrail. Since the roller 203 is slidably connected to the movable end of the sliding frame 201, after adjustment, the elasticity of the thrust spring 204 provides elastic support for the roller 203, ensuring it contacts the guardrail and thus aiding in the smooth movement of the device. When it is necessary to disassemble the device from the outside of the guardrail, screwing the screw rod 202 moves the roller 203 away from the guardrail, facilitating disassembly.

[0024] The extension length of the thrust spring 204 is limited, but the positional movement of the roller 203 can be achieved by utilizing the length of the thrust spring 204.

[0025] The third embodiment differs from the first embodiment in that: The spray module 6 includes multiple atomizing nozzles 601, which are distributed on the inner top surface and vertical inner wall of the tank. This distribution ensures that the water mist evenly covers different areas inside the tank, thereby effectively spraying and atomizing. The function of the atomizing nozzles 601 is to convert the water flow into fine water mist to improve the spraying effect and dispersion range. The atomizing nozzles 601 are very common on the market and can be purchased directly. The output end of the water tank 3 is connected to the atomizing nozzles 601 via a water pump, and the water pump is electrically connected to the controller 9. There are two water tanks 3, located on both sides of the electrical control box 5. The two water tanks 3 are connected by a pipe. The use of two water tanks 3 greatly increases the water storage capacity of the entire device, ensuring the water supply during the spraying process. The water in the water tanks 3 is pumped to the atomizing nozzle 601. The water pump is electrically connected to the controller 9, indicating that the start-up, stop, and flow control of the water pump are all managed by the controller 9. The controller 9 can adjust the operating status of the water pump as needed to achieve automated control. The water pump model can be Grundfos SQE 3-70 submersible pump.

[0026] The water tank 3 is equipped with a liquid level sensor, which is electrically connected to the controller 9. The liquid level sensor is responsible for monitoring the changes in the water level in the water tank 3 in real time, so that the liquid level height in the water tank 3 can be obtained through the controller 9. The liquid level sensor model is Adafruit FSR402 force-sensitive resistor sensor.

[0027] The fourth embodiment differs from the first embodiment in that: It also includes a wireless communication control module electrically connected to the controller 9. A monitoring camera 7 is installed on the outside of the control box 5. The monitoring camera 7 is electrically connected to the controller 9. Through the wireless communication control module, users can easily connect to the controller 9 using smart devices such as mobile phones and tablets. The wireless communication control module is a Raspberry Pi 4 + LoRa module (RFM95W). Bluetooth or Wi-Fi modules can be installed on the Raspberry Pi to create a local communication bridge. In this case, the mobile phone or tablet can communicate with the Raspberry Pi via Bluetooth or Wi-Fi to send or receive data from the LoRa module, or achieve electrical connection with other terminal control devices via an OTG cable. The operation status of the spray module 6 and the travel module 8 can be remotely operated through the terminal smart device, and basic information of the device can be obtained. The basic information of the device includes the power of the battery pack 602, the detection data of the liquid level sensor in the water tank 3, and the working status of each electronic control component. It can also be used in conjunction with the monitoring camera 7 to observe the situation. This increases the flexibility of device operation, allowing users to control and manage the device without direct contact.

[0028] The travel module 8 includes a motor 803 mounted on the top surface of the tank. The motor 803 is a Maxon EC-i 4024V brushless DC motor. This motor controls the rotor's rotation direction by changing the current direction, thus achieving forward and reverse rotation. A working shaft 802 is located at the output end of the motor 803, and a travel wheel 801 is connected to the movable end of the working shaft 802. The motor 803 is electrically connected to the controller 9. The motor 803 drives the working shaft 802 to rotate, allowing the travel wheel 801 to move above the guardrail, thereby moving the device. This, in conjunction with the movement module 2, enables the overall movement of the device. A wireless communication control module allows for remote operation and monitoring, and a monitoring camera 7 provides real-time feedback. The travel module 8 gives the equipment mobility, achieving more efficient spraying operations and greater flexibility. In a preferred embodiment, the device also includes a position sensor electrically connected to the controller 9. The position sensor is a US-015 ultrasonic sensor, used for positioning, increasing the device's flexibility and automation.

Claims

1. An automatic curing device for concrete guardrails, comprising a support (1), wherein the inner side of the support (1) is provided with a groove for accommodating the guardrail, characterized in that: The inner wall of the tank is equipped with a spray module (6) and a moving module (2). The top surface of the support (1) is provided with a water tank (3) and an electrical control box (5). The outlet end of the water tank (3) is connected to the spray module (6). The top surface of the water tank (3) and / or the electrical control box (5) is provided with a solar panel (4). The top surface of the tank is provided with a moving module (8) that can travel on the top surface of the guardrail. The electrical control box (5) is provided with an inverter (401) that is electrically connected to the solar panel (4). The DC input end of the inverter (401) is electrically connected to a battery pack (402). It also includes a controller (9), and the battery pack (402), the travel module (8), and the spray module (6) are all electrically connected to the controller (9).

2. The automatic curing device for concrete guardrails according to claim 1, characterized in that: The bracket (1) includes a front frame (101) and a rear frame (102), which are connected and fixed by a number of not less than two connecting plates (103).

3. The automatic curing device for concrete guardrails according to claim 2, characterized in that: The number of the moving modules (2) is not less than one. The moving module (2) includes a sliding frame (201) that slides with the connecting plate (103). The movable end of the sliding frame (201) extends toward the inner side of the groove and is connected to a roller (203). It also includes a thrust spring (204) disposed between the connecting plate (103) and the roller (203) to push the roller (203) toward the guardrail. A screw rod (202) is threadedly connected to the sliding frame (201). The inner end of the screw rod (202) contacts and supports the connecting plate (103).

4. The automatic curing device for concrete guardrails according to claim 1, characterized in that: The spray module (6) includes multiple atomizing nozzles (601), which are distributed on the inner top surface and vertical inner wall of the tank. The output end of the water tank (3) is connected to the atomizing nozzles (601) through a water pump, and the water pump is electrically connected to the controller (9).

5. The automatic curing device for concrete guardrails according to claim 4, characterized in that: There are two water tanks (3), which are located on both sides of the electrical control box (5) and are connected by a pipe.

6. The automatic curing device for concrete guardrails according to claim 5, characterized in that: The water tank (3) is equipped with a liquid level sensor, which is electrically connected to the controller (9).

7. An automatic curing device for concrete guardrails according to any one of claims 1, 4, and 6, characterized in that: It also includes a wireless communication control module electrically connected to the controller (9), and a monitoring camera (7) is provided on the outside of the control box (5), and the monitoring camera (7) is electrically connected to the controller (9).

8. The automatic curing device for concrete guardrails according to claim 7, characterized in that: The traveling module (8) includes a motor (803) mounted on the electrical control box (5). The output end of the motor (803) is provided with a working shaft (802). The movable end of the working shaft (802) is connected to a traveling wheel (801). The motor (803) is electrically connected to the controller (9).

9. The automatic curing device for concrete guardrails according to claim 1, characterized in that: The bottom surface of the bracket (1) is equipped with auxiliary wheels (104).

Citation Information

Patent Citations

  • Intelligent spraying device of maintenance trolley

    CN220246781U