A device for dredging pipelines for cable laying in electric power construction

Abstract

The invention discloses a pipeline dredging device for laying power construction cables. According to the pipeline dredging device, a harden foreign matter undergoes pneumatic cutting and is discharged from an inlet through rotating of spiral guide pipes. The pipeline dredging device is characterized in that a plurality of inlet air pipes are arranged on one end surface of an annular air storage tank, and the plurality of spiral guide pipes are arranged on the other end surface of the air storage tank at equal intervals; the annular air storage tank is of an annular hollow structure, a limiting ring is arranged in the annular air storage tank, and a sealing bearing is arranged in the middle of the annular air storage tank and divides the annular air storage tank into two parts which rotatemutually; a sealing ring is arranged on the outer ring of the sealing bearing, the plurality of the spiral guide pipes are combined to form a cylindrical cavity, one ends of the spiral guide pipes communicate with the annular air storage tank, and filter elements are arranged at the two ends of the spiral guide pipes; the spiral guide pipe is provided with a row of through holes, the through holes are located on one side of a cylindrical channel, and the apertures of the through holes are gradually reduced from the middle to the two ends in an equal radio; and an annular driving box is arranged at the other ends of the spiral guide pipes and communicates with the spiral guide pipes correspondingly.

Description

technical field [0001] The invention relates to a dredging device for cable laying pipelines in electric power construction, which relates to a device for dredging hard foreign objects in the wiring pipelines during power cable wiring, and belongs to the field of electric power construction. In particular, it relates to a dredging device which utilizes pneumatic cutting of hard foreign matter in the pipe and discharges it from the inlet through a reverse spiral. Background technique [0002] At present, in the process of electric power construction, cables need to be laid through pre-buried pipelines. When laying cables, there is a certain time interval between the burying of pipelines and the layout of cables. After the buried pipeline is placed for a period of time, due to the construction environment, it will cause the pipeline to be blocked in the middle, especially if some concrete is mixed in, and the pipe wall will agglomerate after condensation, with high hardness an...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of electric power construction, cables need to be laid through pre-buried pipelines. When laying cables, there is a certain time interval between the burying of pipelines and the layout of cables. After the buried pipeline is placed for a period of time, due to the construction environment, it will cause the pipeline to be blocked in the middle, especially if some concrete is mixed in, and the pipe wall will agglomerate after condensation, with high hardness and good adhesion. The general cleaning method is difficult to dredge, which affects the laying of cables. The traditional method is to use slender sticks, such as wooden sticks, steel rods, etc., but due to the material of the sticks, dander is easy to fall off during the cleaning process. , and the cleaning of the stick will make the foreign matter go deeper into the pipeline. The length of the stick is limited, and subsequent dredging and cleaning will not be possible. The existing pipeline dredging methods are mostly driven by a motor, and the power is transmitted to the pipeline through a twisted rope The dredging head, because the twisted rope will swing in the pipe during the transmission process, it is easy to cause damage to the pipe wall, making the pipe wall rough and uneven, affecting the laying of cables, and the discharge of foreign matter after dredging is poor. It is very true that foreign matter remains in the pipeline

[0003] Publication No. CN106284559A discloses a pipeline dredging aid, especially the dredging strip is a hollow spiral formed by winding a metal wire, one end of the dredging strip is connected to a connector, and then the connector and the electric drill The power of the tool is connected, the other end of the dredging strip is provided with a coiling part, and is installed inside a split-slotted dredging pipe, and a split-slotted outer casing and a split-slotted handle are sleeved on the outside of the split-slotted dredging pipe , the slotted dredging pipe, the slotted outer sleeve and the slotted handle are provided with longitudinal slots that can be aligned with each other. The width of the slot is larger than the outer diameter of the dredging strip. The outer casing makes the cutting groove misaligned, and then starts the electric drill tool to drive the dredging strip to twist elastically, so as to wind the hair and blocking foreign matter in the pipeline around the coiling part of the spiral, and finally turn the split outer casing to make the cutting groove Align, so that the dredging strip can pass through the cut slot, and move the electric drill tool down to roll up the hair and obstructions that are blocked deep in the pipeline. This device is an auxiliary device for dredging the daily management, and during the dredging process , it is difficult to clean hard foreign matter such as concrete, and it is impossible to dredge the cable management

[0004] Publication No. CN104275335A discloses a dredging device for pre-embedded curved wire pipes, which includes a dredging head, a dredging rod, a locking wrench and a hollow hammer. Locking wrench and hollow hammer, wherein the locking wrench can be locked on the steel hinge line, and its use method includes: 1) Insert one end of the dredging head into the blocked curved wire pipe; 2) Put the locking wrench on the dredging rod 3) Put the hollow hammer on the dredge rod, and tap the locking wrench vertically with the hollow hammer; 4) Adjust the distance between the locking wrench and the mouth of the embedded electric pipe, repeat step 3) , until the pipeline is unblocked, this method transmits power through the steel strand rope, and reciprocates many times, and the damage to the inner wall of the pipe is more serious than before. Time-consuming and labor-intensive, the foreign matter after dredging is pushed through the dredging head and discharged from the other end of the management. The whole process requires steel strands to run through the pipeline, and the required number of steel cables is large, and it is impossible to realize the discharge at one end

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