一种桥梁伸缩缝自动维护装置
By combining the air knife and vacuum cleaner in the automatic maintenance device for bridge expansion joints, the problem of cleaning dirt from bridge expansion joints has been solved, achieving efficient and flexible cleaning results, and is especially suitable for bridge expansion joints with irregular structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU UNIV OF SCI & TECH SUZHOU INST OF TECH
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
Smart Images
Figure CN224514127U_ABST
Abstract
Claims
1. A bridge joint automatic maintenance device characterized by, include: The device includes an air knife, a trolley, and a vacuum cleaner. The trolley has a downward-facing air collection hood at its bottom, bearings on both sides of the air collection hood, and a horizontally mounted axle in each bearing. The air knife is swayably mounted below the trolley, extending along the trolley's forward direction. The vacuum cleaner is mounted on the trolley, with an air supply pipe connected to the air knife at its exhaust end and a pipe extending downward into the air collection hood at its inlet end.
2. The bridge joint automatic maintenance device according to claim 1, characterized in that, The cart is equipped with a portable power source to power the vacuum cleaner.
3. The bridge joint automatic maintenance device according to claim 1, characterized in that, A wheel is provided at the outer end of the axle.
4. The bridge joint automatic maintenance device according to claim 1, characterized in that, There are two air blades, each corresponding to a wheel axle.
5. The bridge joint automatic maintenance device according to claim 1, characterized in that, The inner end of the axle is provided with a guide block, and the end of the guide block facing the air knife is provided with an inclined surface. The side of the air knife facing the inclined surface is provided with a drive rod pointing towards the inclined surface. The end of the drive rod is provided with a ball retainer, and the ball retainer is provided with balls that roll in contact with the inclined surface.
6. The bridge joint automatic maintenance device according to claim 5, characterized in that, The ball retainer includes a fixed seat and a pressure ring. The pressure ring is disposed at the front end of the fixed seat. The ball is disposed in the fixed seat and extends outward through the central hole of the pressure ring. The fixed seat is provided with a spherical groove corresponding to the ball.
7. The bridge joint automatic maintenance device according to claim 5, characterized in that, The bottom of the trolley is provided with a pin seat located above the air knife. The pin seat contains a pin shaft connected to the air knife, and the pin shaft is provided with a torsion spring that forces the air knife to rotate in the direction of the guide block.
8. The bridge joint automatic maintenance device according to claim 1, characterized in that, The cart is equipped with a switch to control the operation of the vacuum cleaner.