Portal frame for building engineering construction
By installing a vertical shaft, spring, contact rod, and alarm between the crossbeams and columns of the gantry, the problem of lacking overload alarm and weight adjustment in existing technologies is solved, thereby improving safety and flexibility.
CN223752281UActive Publication Date: 2026-01-02INNER MONGOLIA FENGKAI ENGINEERING PROJECT MANAGEMENT CO LTD
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Patent Information
- Application Number
- CN202520424570.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Technical Problem
Existing gantry cranes used in construction projects lack overload alarm functions, resulting in low safety and an inability to adjust the maximum permissible lifting weight.
Method used
A vertical shaft, spring, contact rod, and alarm are installed between the crossbeam and column of the gantry frame. The alarm is triggered by the compression of the spring and the contact rod. The height of the touch switch is adjusted by the slide and bakelite screw to adjust the maximum allowable lifting weight.
Benefits of technology
It features an overload alarm function, increasing safety and allowing for flexible adjustment of the maximum permissible lifting weight, thus improving both flexibility and safety.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of portal frames, and discloses a portal frame for building engineering construction, which comprises a cross beam and two stand columns, the upper parts of the stand columns are provided with through holes matched with the cross beam, the two ends of the cross beam respectively penetrate through the two through holes, vertical shafts are fixedly arranged in the through holes, and springs are sleeved on the vertical shafts; the vertical shaft penetrates through the cross beam, the cross beam is slidably connected with the vertical shaft, and the upper end and the lower end of the spring are fixedly connected with the bottom of the cross beam and the inner wall of the bottom of the through hole correspondingly. Through cooperative use of the cross beam, the stand column, the through hole, the vertical shaft, the spring, the feeler lever, the touch control switch and the alarm, the lifting overweight alarm function is achieved when a lifted building material is heavy, the use safety is improved, the height of the touch control switch can be adjusted through the sliding groove, the sliding block and the bakelite screw, and the safety is improved. Therefore, the maximum descending height of the cross beam is adjusted, so that the maximum allowable lifting weight of the portal frame is adjusted, and the portal frame is flexible and convenient to use.
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