6results about How to "Improve plugging quality" patented technology

The invention relates to the technical field of pipeline emergency maintenance and repair, in particular to a pipeline leakage flexible plugging fixture system and a pipeline leakage plugging method. The pipeline leakage flexible plugging fixture system comprises a hydraulic excavating vehicle assembly, a mechanical arm assembly and a flexible fixture assembly; one end of the mechanical arm assembly is connected with the hydraulic excavating vehicle assembly, the other end of the mechanical arm assembly is connected with the flexible clamp assembly, and a leakage pipeline is blocked by clamping a flexible clamp. A swing arm frame is installed on the ratchet wheel locking assembly, and the swing arm frame swings in a reciprocating mode through an electric push rod, so that the flexible belt assembly is driven to be curled and tightened for fastening. The pressure adjusting assembly is provided with an air pump, the air pump is controlled to inflate and deflate an air bag on the inner side of the flexible clamp assembly, expansion and contraction of the air bag are achieved, and the tension of the flexible belt assembly is kept stable. Leakage points are detected through the positioning trolley, hydraulic excavation and pipe wall polishing are conducted through the hydraulic excavation vehicle, and dependence on manual operation is reduced. The plugging device has the characteristics of rapidness and convenience in installation and stable plugging performance.

This utility model discloses an outer template and its grouting device for grouting the spigot and socket joints of PCCP pipes. The outer template includes a canvas bag, two locking wires, and two elastic pads. The canvas bag is elongated with openings at both ends. The two ends of the locking wires protrude through the openings at both ends of the canvas bag. The elastic pads are also elongated and are placed outside the canvas bag and below the locking wires. The grouting device includes a grouting pipe, one end of which is connected to a mortar hopper, and the other end injects grout into the spigot and socket joint of the PCCP pipe through a grouting port. The grouting port is constructed by the aforementioned outer template. This utility model uses a canvas bag and locking wires, with the two ends of the locking wires protruding through the openings at both ends of the canvas bag, and then twisting and tightening the two ends of the locking wires to lock the canvas bag to the outer wall of the PCCP pipe, forming an outer template. Furthermore, by adding elastic pads, the gap between the canvas bag and the PCCP pipe is sealed, preventing grout leakage during grouting and effectively improving the sealing quality.

The application relates to the technical field of building construction, in particular to a sealing structure for a screw hole in an outer wall, which comprises a plugging assembly arranged in the screw hole and a sealing assembly arranged close to the outside of the screw hole; the plugging assembly comprises, from inside to outside, an inner waterproof mortar layer, a foaming agent layer and an outer waterproof mortar layer; the sealing assembly comprises, from inside to outside, a sealing block, a waterproof sealant layer and a waterproof paint layer; the outer waterproof mortar layer is arranged between the waterproof sealant layer and the waterproof paint layer; the inner waterproof mortar layer, the foaming agent layer and the outer waterproof mortar layer jointly fill the screw hole, enhance the compactness of plugging and prevent leakage; meanwhile, the sealing block, the waterproof sealant layer and the waterproof paint layer further form a sealing barrier for the screw hole in the outer wall, prevent external water such as rainwater from invading, improve the waterproof performance of the outer wall, and significantly improve the plugging quality of the screw hole in the outer wall and reduce the leakage risk of the outer wall.

This application relates to the field of engineering construction technology, and in particular to a curtain grouting orifice sealing device, comprising a sealing pipe, a limiting ring, and an expansion component; one end of the sealing pipe passes through the curtain grouting hole, and the other end of the sealing pipe extending out of the curtain grouting hole is fixedly connected to the limiting ring, and the limiting ring is coaxially fixed with the sealing pipe; the expansion component is installed on the sealing pipe, and the expansion component includes a sealing cloth for the gap between the sealing pipe and the wall of the curtain grouting hole, the sealing cloth being wrapped around the sealing pipe; the designed curtain grouting orifice sealing device, through the expansion component, facilitates the filling and sealing of the gap between the sealing pipe and the wall of the curtain grouting hole, and at the same time, through the multi-layer wrapping of the sealing cloth, facilitates the filling and sealing of the gap between the sealing pipe and the wall of the curtain grouting hole, preventing grout leakage along the gap between the sealing pipe and the wall of the curtain grouting hole, and improving the grouting quality of curtain grouting construction.

The utility model discloses a kind of row metal vertical pipe structure floor plugging formwork supporting devices, comprising: formwork, with tube hole being arranged side by side on it, the formwork is divided into two halves along its axis, and the tube hole is bisected;Formwork auxiliary, install on formwork, connect two formworks, the formwork auxiliary bottom has fixed sleeve;Formwork bar, for inserting fixed sleeve to support formwork.This application changes from formwork mode to lower formwork mode by formwork auxiliary when row metal vertical pipe structure floor plugging, can conveniently and firmly support wood formwork used for plugging under the structure floor of steel vertical pipe, can adjust steel casing to be centered when plugging, not droop, and concrete can be vibrated compacted when plugging, not afraid of plugging concrete droop, reduce the risk of leakage, effectively improve plugging quality.

The utility model provides an assembly type concrete well and pipeline connecting system which comprises a concrete well, a pipeline and a sealing assembly, a preassembling hole is formed in the side wall of the concrete well, the preassembling hole is at least partially arranged outside the pipeline in a surrounding mode, and the sealing assembly is located between the inner wall of the preassembling hole and the outer wall of the pipeline; the sealing assembly comprises a limiting ring and a sealing ring, and the limiting ring is coaxially arranged outside the pipeline in a sleeving mode and fixedly connected with the pipeline; the sealing ring is coaxially arranged outside the pipeline in a sleeving mode and abuts against the pipeline. The outer diameter of the sealing ring is larger than or equal to that of the limiting ring, and the sealing ring is located on the upstream side of the limiting ring. According to the utility model, the installation accuracy of the pipeline can be ensured, and plugging materials do not need to be filled later, so that the construction operation is simplified, and the construction efficiency and the construction quality are effectively improved.