Connecting piece for foundation pit steel pipe

Abstract

The invention discloses a connecting piece for a foundation pit steel pipe, and relates to the field of foundation pit construction. The connecting piece comprises a connecting support and two supporting structures symmetrically arranged at the top end of the connecting support; four steel pipe connecting cylinders used for being connected with steel pipes are arranged on the connecting support and arranged on the three side faces and the bottom end of the connecting support correspondingly, and a fixing cylinder is fixed to the top end of the connecting support; one ends of supporting rods of the supporting structures are hinged to the top end of the connecting support, the other ends of the supporting rods of the supporting structures are hinged to connecting rods, the other ends of the connecting rods are hinged to the side walls of semi-cylindrical limiting barrels, and an inclined rod used for supporting is further arranged on each connecting rod; and the semi-cylindrical limiting barrels are detachably connected through bolts, and connected hollow cavities are used for supporting and reinforcing the connected steel pipes. The connecting piece has double supporting and protecting functions, loosening and deviation of the connected steel pipes on the upper portion and the lower portion can be greatly reduced, meanwhile, the number of fasteners at the connecting position is reduced, and materials and cost are saved.

Description

technical field [0001] The invention relates to the field of foundation pit construction, in particular to a connecting piece for foundation pit steel pipes. Background technique [0002] When the foundation pit is very deep, the soil layer on the side of the foundation pit will collapse to varying degrees, so an enclosure structure is required to prevent the soil layer on the side of the foundation pit from collapsing. Make support piles or continuous walls on both sides, and then use steel pipes to withstand the piles or walls on both sides, and you can also use many rows of steel pipes to support them. To continue digging down. When using steel pipe support, due to the limited length of the steel pipe and the large support area, it is often necessary to connect multiple steel pipes to form a support system. A steel pipe support system is often composed of vertical pipes, horizontal pipes, and inclined steel pipes. However, when the existing foundation pit steel pipe sup...

AI Technical Summary

Problems solved by technology

When using steel pipe support, due to the limited length of the steel pipe and the large support area, it is often necessary to connect multiple steel pipes to form a support system. A steel pipe support system is often composed of vertical pipes, horizontal pipes, and inclined steel pipes. However, when the existing foundation pit steel pipe support connector is connected to the steel pipe, the relative position between the two connected vertical pipes will be shifted and loosened, which will easily affect the upper steel pipe connection and cause a collapse accident; the fastener at the connection is relatively large , and the use is complicated, resulting in waste of materials and labor costs

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