Telescopic hole protection device
The utility model relates to the technical field of construction protection, and provides a telescopic hole protection device which comprises a first protection frame, a second protection frame, a vertical sliding assembly and a fixing device. The first protection frame comprises a first stand colum...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to the technical field of construction protection, and provides a telescopic hole protection device which comprises a first protection frame, a second protection frame, a vertical sliding assembly and a fixing device. The first protection frame comprises a first stand column and a first telescopic rod. The second protection frame comprises a second stand column and a second telescopic rod. The vertical sliding assembly achieves relative sliding of the first protection frame and the second protection frame in the vertical direction. The protective device has the beneficial effects that the protective device can be suitable for protecting holes with different widths and heights, is wide in application range, is convenient to disassemble and assemble, is very convenient to recycle and reuse, and reduces the construction cost. Besides, during installation, the first protection frame can be installed firstly, then the second protection frame is installed, when the second protection frame |
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