Radial gate hydraulic hoist capable of being locally opened for water retaining operation under high-water-head flood discharge working condition

By combining the auxiliary hydraulic cylinder assembly with the locking limit device, the radial gate can be accurately locked and operated stably under high-head flood discharge conditions, solving the problems of water seal leakage and complex operation in the existing technology and improving the operating accuracy and safety of the equipment.

CN223358223UActive Publication Date: 2025-09-19POWERCHINA HUADONG ENG CORP LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202422390775.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-09-19
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

The existing main cylinder hydraulic hoist for opening and closing high-head radial gates is complex to operate under high-head flood discharge conditions, and is prone to water seal leakage, excessive friction and equipment failure. In addition, the eccentric hinge system requires high operating precision, and the water seal is easily misaligned due to installation deviation.

Method used

The auxiliary hydraulic cylinder assembly and locking limit device are used to connect the eccentric hinge through the slider, pull rod and locking mechanism to achieve precise locking and stable operation of the eccentric hinge. The spherical joint bearing is combined to eliminate installation deviation, and the hydraulic system and accumulator are used to achieve locking and pressure maintenance of the slider.

Benefits of technology

The operation accuracy and safety of the eccentric hinge are improved, the effective sealing of the water seal is ensured, equipment failures are reduced, the operation process is simplified, and the safety hazards of the equipment are reduced.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model relates to a radial gate hydraulic hoist capable of being locally opened for water retaining operation under the working condition of high-water-head flood discharge. The method is suitable for water conservancy and hydropower engineering. According to the technical scheme, the auxiliary hydraulic cylinder assembly is connected with an eccentric hinge crank arm on an eccentric hinge through a locking limiting device and used for driving the eccentric hinge to rotate around the axis of the eccentric hinge; the locking and limiting device is provided with a sliding block and a pull rod assembly, the sliding block is provided with a guide rail assembly which limits the sliding block to only move vertically, the sliding block is connected with the auxiliary hydraulic cylinder assembly through a first hanging shaft, the sliding block is connected with the pull rod assembly through a second hanging shaft, and the pull rod assembly is connected with an eccentric hinge crank arm on the eccentric hinge through a third hanging shaft. The locking and limiting device is further provided with a locking mechanism, and the locking mechanism can lock the sliding block to at least one preset position on the guide rail assembly. The at least one preset position comprises a first position, and when the sliding block is locked at the first position on the guide rail assembly, the eccentric hinge connected with the sliding block through the pull rod assembly and the eccentric hinge crank arm rotates to a first state.
Need to check novelty before this filing date? Find Prior Art