Cleaning equipment for maintenance of expansion joint in bridge construction
By designing cleaning equipment for bridge construction expansion joint maintenance, and utilizing a combination of fan collection and rotating brushes, the problem of difficult collection of impurities in the cleaning device was solved, achieving efficient and environmentally friendly cleaning of bridge expansion joints, and improving the overall cleaning effect and equipment adaptability.
Patent Information
- Application Number
- CN202520106341.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-16
AI Technical Summary
When cleaning bridge expansion joints, existing cleaning devices often fail to collect the debris cleaned up by the cleaning wheels, which tends to fall back into the expansion joints, requiring secondary cleaning and affecting overall cleaning efficiency.
A cleaning device for maintenance of bridge construction expansion joints was designed. It adopts a combination structure of support platform, cleaning and collection components, fan, transmission pipe and collection box. The fan quickly collects impurities, and the rotating brush and positioning ring adapt to different gap widths. The distance of the device can be adjusted by connecting blocks to achieve efficient impurity collection and cleaning.
It effectively prevents impurities from re-scattering, reduces the diffusion of dust in the air, improves cleaning efficiency and effectiveness, and meets the cleaning needs of different bridge expansion joints.
Smart Images

Figure CN223867124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning equipment, and in particular to cleaning equipment for the maintenance of expansion joints in bridge construction. Background Technology
[0002] Bridge construction refers to the entire process of building a bridge according to the design specifications, including the foundation construction of piers and columns to ensure the bridge's load-bearing capacity and stability, as well as the paving and beautification of the bridge deck to ensure its usability and aesthetics. Bridge expansion joints are an important component of the bridge structure, primarily used to accommodate expansion and contraction caused by factors such as temperature changes, vehicle loads, and the bridge's own expansion and contraction. During construction and maintenance of bridge expansion joints, cleaning equipment is required for cleaning and maintenance to ensure optimal repair results and prevent secondary damage.
[0003] Existing cleaning devices typically use cleaning wheels to clean the inside of the gaps during the cleaning process. However, since there are a lot of impurities inside the expansion joints, the debris cleaned by the cleaning wheels is not easy to collect and tends to fall back into the expansion joints, requiring secondary cleaning and affecting the overall cleaning efficiency.
[0004] Therefore, existing cleaning devices typically use cleaning wheels to clean the inside of the joints. However, due to the large amount of impurities inside the expansion joints, the debris cleaned by the cleaning wheels is not easy to collect and tends to fall back into the expansion joints, requiring secondary cleaning and affecting the overall cleaning efficiency. A cleaning device for bridge construction expansion joint maintenance could be designed to quickly collect the cleaned debris, preventing it from falling back into the expansion joints or other areas and causing secondary pollution. This would reduce the risk of dust and impurities spreading in the air, lower the pollution to the surrounding environment, and improve the overall cleaning effect. Utility Model Content
[0005] The purpose of this invention is to overcome the problem that when existing cleaning devices typically use cleaning wheels to clean the inside of gaps, the debris cleaned out is not easy to collect and easily falls back into the expansion joint, requiring secondary cleaning and thus affecting the overall cleaning efficiency.
[0006] The technical solution of this utility model is as follows: a cleaning device for maintenance of bridge construction expansion joints, including a support platform and a cleaning and collection component. The upper end of the support platform is equipped with a cleaning and collection component for cleaning and collecting impurities from the joint. The cleaning and collection component includes a movable plate, a connecting block, a rotating rod, a positioning ring, a water tank, a fan, a transmission pipe, and a collection box. Two sets of fans are provided on the outer side of the support platform. A transmission pipe is fixed between the fans and the support platform. A collection box is fixed at the lower end of the support platform. The fans are connected to the collection box through the transmission pipe. A connecting frame is fixed at one end of the fans.
[0007] Preferably, two sets of fans are used to quickly collect the cleaned impurities, preventing them from falling back into the expansion joints or other areas and causing secondary pollution. This reduces the risk of dust and impurities spreading in the air, lowers the pollution to the surrounding environment, and effectively removes impurities from the expansion joints. The positioning ring allows for the replacement of different rotating brushes according to the specific width of the gap and cleaning needs, effectively cleaning different types of dirt and impurities and improving the overall cleaning effect. Furthermore, the connecting block allows for sliding adjustment based on the distance between the expansion joint and the device, precisely adjusting the distance between the equipment and the expansion joint to adapt to the cleaning work of expansion joints in different locations and meet the cleaning needs of different bridge expansion joints.
[0008] Preferably, the lower end of the collection box is provided with a sealing plate, and a bolt is provided at the lower corner of the sealing plate. The sealing plate is fixed to the collection box by the bolt thread.
[0009] Preferably, the upper end of the support platform is provided with two sets of movable plates on one side of the fan. The upper end of each set of movable plates is fixed with a drive motor. One end of the drive motor is provided with a rotating rod at the lower end of the movable plate, and one end of the rotating rod is provided with a rotating brush.
[0010] Preferably, a positioning ring is fixedly provided at the outer end of the rotating rod, and a pin is provided around the outer end of the positioning ring. The rotating brush is fixedly connected to the positioning ring through the pin.
[0011] Preferably, a connecting block is fixedly provided at one end of the movable plate, and a groove for accommodating the connecting block is provided at the upper end of the support plate. The movable plate is slidably set along the inside of the groove through the connecting block.
[0012] Preferably, the outer end of the connecting block is provided with two sets of screws, and the upper end of the support plate is provided with multiple sets of through holes to accommodate the screws. The connecting block is fixedly connected to the support plate by the two sets of screws.
[0013] Preferably, a water tank is fixedly installed at the upper end of the support platform, a chuck is movably installed at the outer end of the water tank, a water spray pipe is installed inside the chuck, a water pump is installed between the water spray pipe and the water tank, a handle is welded to the lower end of the support platform, a connecting rod is fixedly installed at the lower end of the support platform, and connecting wheels are installed at both ends of the connecting rod.
[0014] The beneficial effects of this utility model are:
[0015] 1. Compared to traditional cleaning equipment, this device uses two sets of fans to quickly collect the cleaned impurities, preventing them from falling back into expansion joints or other areas and causing secondary pollution. This reduces the risk of dust and impurities spreading in the air, minimizing pollution to the surrounding environment. It effectively removes impurities from expansion joints. By using positioning rings to replace different rotating brushes according to the specific width of the gap and cleaning needs, it effectively cleans different types of dirt and impurities, improving the overall cleaning effect. Furthermore, by using connecting blocks to slide and adjust the distance between the device and the expansion joint, it can precisely adjust the distance between the device and the expansion joint, adapting to the cleaning work of expansion joints in different locations and meeting the cleaning needs of different bridge expansion joints. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the cleaning equipment for repairing bridge construction expansion joints according to this utility model.
[0017] Figure 2 The diagram shown is a schematic representation of the rotating brush structure of the cleaning equipment for repairing bridge construction expansion joints according to this utility model.
[0018] Figure 3 The diagram shown is a schematic representation of the ventilation structure of the cleaning equipment for repairing bridge construction expansion joints according to this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the water storage tank structure of the cleaning equipment for repairing bridge construction expansion joints according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Support platform; 201. Movable plate; 202. Connecting block; 203. Drive motor; 204. Rotating rod; 205. Positioning ring; 206. Rotating brush; 207. Water tank; 208. Chuck; 209. Spray pipe; 210. Fan; 211. Transmission pipe; 212. Connecting frame; 213. Collection box; 214. Sealing plate; 215. Connecting wheel; 216. Connecting rod; 217. Handle. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Bridge construction refers to the entire process of bridge engineering, from surveying, design, construction, maintenance to inspection, as well as the science and engineering technology involved in this process. It is a branch of civil engineering, encompassing multiple aspects including bridge design, material selection, construction techniques, and construction procedures. A bridge is a structure built to cross natural or man-made obstacles, generally consisting of five major components and five minor components. The five major components include the bridge span structure (superstructure), bridge bearing system, piers, abutments, pile caps, and wells or pile foundations. The five minor components include bridge deck paving, drainage system, railings, expansion joints, and lighting. In bridge construction, computer-aided management will be fully utilized for economical and efficient construction organization. New technologies and high-efficiency, high-performance machinery and equipment will be continuously adopted to improve quality, shorten construction time, and reduce costs. Bridge construction has a long cycle, generally exceeding one year, and large projects may take more than ten years. It involves multiple disciplines and requires good coordination and management. Each bridge project has its unique characteristics, and construction quality is related to the safety of people and property. Therefore, it is necessary to formulate specific operating procedures and requirements for bridge construction to ensure the quality, progress, and safety of bridge construction. The existence and compliance of standards can effectively reduce the occurrence of accidents, lower construction costs, and improve the quality and reliability of the project.
[0023] Bridge expansion joints, also known as bridge expansion devices or simply expansion joints, are an important component of bridge structures. Their primary function is to accommodate the expansion and contraction of the bridge due to factors such as temperature changes, vehicle loads, and the bridge's own expansion and contraction. The main function of bridge expansion joints is to allow the bridge to expand and contract under temperature changes and loads without damaging the bridge structure. By installing expansion joints, cracks in the bridge structure caused by thermal expansion and contraction due to temperature changes can be prevented. Expansion joints protect the bridge structure from damage caused by vehicle loads and environmental factors. Bridge expansion joints are a crucial aspect of bridge design and construction, essential for ensuring the safety and functionality of the bridge.
[0024] Bridge expansion joint maintenance cleaning equipment is a type of machinery used for cleaning and maintaining bridge expansion joints. The main purpose of this equipment is to improve cleaning efficiency, reduce manual labor intensity, and protect the bridge structure from damage. The cleaning principle utilizes high-energy water jets to impact the bridge surface, achieving a thorough removal of debris. The high-pressure water jets used in the cleaning process can be precisely controlled in direction and angle through specially designed nozzles, ensuring that every corner of the bridge surface is cleaned, guaranteeing effective cleaning. Bridge expansion joint maintenance cleaning equipment integrates multiple advanced technologies to provide a highly efficient, environmentally friendly, and safe solution for cleaning bridge expansion joints.
[0025] Although there are many cleaning devices for bridge construction expansion joint maintenance on the market, some problems and challenges still exist in actual application. Existing cleaning devices usually use cleaning wheels to clean the inside of the joints. Since there are a lot of impurities inside the expansion joints, the debris cleaned by the cleaning wheels is not easy to collect and is likely to fall back into the expansion joints, requiring secondary cleaning and affecting the overall cleaning efficiency.
[0026] Please see Figures 1-4 This utility model provides an embodiment of a cleaning device for the maintenance of bridge construction expansion joints, including a support platform 1 and a cleaning and collection assembly. The upper end of the support platform 1 is equipped with a cleaning and collection assembly for cleaning and collecting impurities from the joint. The cleaning and collection assembly includes a movable plate 201, a connecting block 202, a rotating rod 204, a positioning ring 205, a water tank 207, a fan 210, a transmission pipe 211, and a collection box 213. Two sets of fans 210 are provided on the outer side of the support platform 1. The transmission pipe 211 is fixed between the fans 210 and the support platform 1. The collection box 213 is fixed at the lower end of the support platform 1. The fans 210 are connected to the collection box 213 through the transmission pipe 211. A connecting frame 212 is fixed at one end of the fans 210.
[0027] Please see Figures 1-2 In this embodiment, a sealing plate 214 is provided at the lower end of the collection box 213. A bolt is provided at the lower corner of the sealing plate 214. The sealing plate 214 is threadedly fixed to the collection box 213 by the bolt. The sealing plate 214 is disassembled and installed by bolts to clean the collection box 213, so that the sealing plate 214 can be quickly disassembled and maintained, and the equipment can be quickly put back into use. This facilitates the collection and treatment of impurities after cleaning, and improves the cleaning efficiency inside the bridge expansion joint. The upper end of the support platform 1 is provided with two sets of movable plates 201 on one side of the fan 210. A drive motor 203 is fixedly provided at the upper end of both sets of movable plates 201. A rotating rod 204 is provided at the lower end of the movable plate 201 at one end of the drive motor 203. A rotating brush 206 is provided at one end of the rotating rod 204. By using the drive motor 203 to drive the rotating brush 206 to rotate at high speed to clean the inside of the expansion joint, the deposited dirt inside the expansion joint is effectively removed, reducing the number of personnel cleaning the bridge expansion joint and improving the overall cleaning effect.
[0028] Please see Figures 1-3In this embodiment, a positioning ring 205 is fixedly provided at the outer end of the rotating rod 204, and a pin is provided around the outer end of the positioning ring 205. The rotating brush 206 is fixedly connected to the positioning ring 205 through the pin. By using the positioning ring 205 to replace different rotating brushes 206 according to the specific width of the gap and cleaning requirements, different dirt and impurities can be effectively cleaned, improving the overall cleaning effect. A connecting block 202 is fixedly provided at one end of the movable plate 201, and a groove for accommodating the connecting block 202 is opened at the upper end of the support plate 1. The movable plate 201 is slidably set along the inside of the groove through the connecting block 202. By using the connecting block 202 to slide and adjust according to the distance between the expansion joint and the device, the distance between the device and the expansion joint can be precisely adjusted to adapt to the cleaning work of expansion joints in different positions, effectively removing debris and deposits in the expansion joint, meeting the cleaning needs of different bridge expansion joints, and improving the cleaning quality.
[0029] Please see Figures 2-4 In this embodiment, the outer end of the connecting block 202 is provided with two sets of screws, and the upper end of the support plate 1 is provided with multiple sets of through holes for accommodating screws. The connecting block 202 is fixedly connected to the support plate 1 by the two sets of screws. After the rotating brush 206 is adjusted to the upper end of the expansion joint, the screws are used for limiting and positioning to prevent shaking and improve the stability of the equipment. The upper end of the support plate 1 is fixedly provided with a water tank 207. The outer end of the water tank 207 is movably provided with a chuck 208. The inside of the chuck 208 is provided with a water spray pipe 209. A water pump is provided between the water spray pipe 209 and the water tank 207. The lower end of the support plate 1 is welded with a handle 217. The lower end of the support plate 1 is fixedly provided with a connecting rod 216. The two ends of the connecting rod 216 are provided with connecting wheels 215. By using the water spray pipe 209 to assist in spraying during the cleaning process, it helps to soften and loosen stubborn dirt, while reducing dust flying and avoiding the impact of dust on the surrounding environment and air quality during the cleaning process.
[0030] During operation, firstly, based on the specific width and cleaning requirements of the bridge expansion joint, different rotating brushes 206 are replaced using the positioning ring 205 in conjunction with multiple sets of pins to effectively clean different types of dirt and impurities. After replacing the rotating brushes 206, the device is moved to the designated position by gripping the handle 217. The connecting block 202 is used to slide and adjust the distance between the device and the expansion joint according to the distance between them, precisely adjusting the distance to adapt to cleaning expansion joints in different positions and meeting the cleaning needs of different bridge expansion joints. After the rotating brushes 206 are adjusted to the upper end of the expansion joint, screws are used for limit positioning to prevent shaking. The drive motor 203 is then started to drive the rotating brushes 206 to rotate at high speed for cleaning. Inside the expansion joint, the system effectively removes accumulated dirt, reducing the need for personnel to clean the bridge expansion joint. During the cleaning process, the rotating brush 206 uses a water pump to spray water from the water tank 207 through the spray pipe 209, helping to soften and loosen stubborn dirt while reducing dust. This prevents dust from affecting the surrounding environment and air quality. After the rotating brush 206 removes the impurities, two sets of fans 210, combined with the connecting frame 212, quickly collect the removed impurities, preventing them from falling back into the expansion joint or other areas and causing secondary pollution. This reduces the risk of dust and impurities spreading in the air and minimizes pollution to the surrounding environment.
[0031] Through the above steps, two sets of fans 210 are used to quickly collect the cleaned impurities, preventing them from falling back into the expansion joints or other areas and causing secondary pollution. This reduces the risk of dust and impurities spreading in the air, lowers the pollution to the surrounding environment, and effectively removes impurities from the expansion joints. The positioning ring 205 is used to replace different rotating brushes 206 according to the specific width of the gap and cleaning needs, effectively cleaning different types of dirt and impurities and improving the overall cleaning effect. The connecting block 202 is used to slide and adjust the distance between the equipment and the expansion joint according to the distance between the expansion joint and the expansion joint, adapting to the cleaning work of expansion joints in different locations and meeting the cleaning needs of different bridge expansion joints.
Claims
1. A cleaning device for maintenance of bridge construction expansion joints, comprising a support platform (1); characterized in that: It also includes a cleaning and collection component. The upper end of the support plate (1) is equipped with a cleaning and collection component for cleaning and collecting impurities from the gaps. The cleaning and collection component includes a movable plate (201), a connecting block (202), a rotating rod (204), a positioning ring (205), a water tank (207), a fan (210), a transmission pipe (211), and a collection box (213). Two sets of fans (210) are provided on the outside of the support plate (1). A transmission pipe (211) is fixed between the fan (210) and the support plate (1). A collection box (213) is fixed at the lower end of the support plate (1). The fan (210) is connected to the collection box (213) through the transmission pipe (211). A connecting frame (212) is fixed at one end of the fan (210).
2. The cleaning equipment for bridge construction expansion joint maintenance according to claim 1, characterized in that: The lower end of the collection box (213) is provided with a sealing plate (214), and a bolt is provided at the lower corner of the sealing plate (214). The sealing plate (214) is threadedly fixed to the collection box (213) by the bolt.
3. The cleaning equipment for bridge construction expansion joint maintenance according to claim 2, characterized in that: The upper end of the support plate (1) is provided with two sets of movable plates (201) on one side of the fan (210). The upper end of each set of movable plates (201) is fixed with a drive motor (203). One end of the drive motor (203) is provided with a rotating rod (204) at the lower end of the movable plate (201). One end of the rotating rod (204) is provided with a rotating brush (206).
4. The cleaning equipment for bridge construction expansion joint maintenance according to claim 3, characterized in that: A positioning ring (205) is fixedly provided at the outer end of the rotating rod (204), and a pin is provided around the outer end of the positioning ring (205). The rotating brush (206) is fixedly connected to the positioning ring (205) through the pin.
5. The cleaning equipment for bridge construction expansion joint maintenance according to claim 4, characterized in that: One end of the movable plate (201) is fixedly provided with a connecting block (202), and the upper end of the support plate (1) is provided with a groove for accommodating the connecting block (202). The movable plate (201) is slidably set along the inside of the groove through the connecting block (202).
6. The cleaning equipment for bridge construction expansion joint maintenance according to claim 5, characterized in that: The outer end of the connecting block (202) is provided with two sets of screws, and the upper end of the support plate (1) is provided with multiple sets of through holes to accommodate the screws. The connecting block (202) is fixedly connected to the support plate (1) by the two sets of screws.
7. The cleaning equipment for bridge construction expansion joint maintenance according to claim 3, characterized in that: A water storage tank (207) is fixedly installed at the upper end of the support platform (1). A chuck (208) is movably installed at the outer end of the water storage tank (207). A water spray pipe (209) is installed inside the chuck (208). A water pump is installed between the water spray pipe (209) and the water storage tank (207). A handle (217) is welded to the lower end of the support platform (1). A connecting rod (216) is fixedly installed at the lower end of the support platform (1). Connecting wheels (215) are installed at both ends of the connecting rod (216).