CN115535839A - A quick hoisting sling for sewage pipeline and construction method - Google Patents

Abstract

The invention relates to a quick-lifting sling for sewage pipelines and a construction method. The sling includes a rectangular frame beam welded by two beams and two longitudinal beams, and two supports parallel to the two longitudinal beams are inserted between the two beams. The two ends of each support rod respectively penetrate to the outside of the two beams and are screwed to the first stop nut; the top surface of each longitudinal beam is welded with two lifting lugs, and the distance between the two longitudinal beams is greater than the diameter of the sewage pipe. The spacing of the rods is smaller than the diameter of the sewer pipe. During construction, two support rods are used to support the pipe segment for lifting. After the lifting is in place, the support rod can be removed to quickly separate the spreader from the pipe segment. The lifting speed is fast and the safety is high; one time can lift 1-3 sections, high construction efficiency.

Description

A quick hoisting sling for sewage pipeline and its construction method

technical field

The invention belongs to the field of municipal engineering construction, and relates to the installation and construction of urban underground sewage pipelines, in particular to a quick-lifting hoisting tool for sewage pipelines and a construction method thereof.

Background technique

The construction process of municipal sewage pipelines includes trench excavation→laying of cushion→pipeline hoisting section by section. At present, when the pipeline is hoisted, the steel wire rope is generally used to bind and lift the pipeline segment, and the main problems are as follows:

1. During the lifting process, the wire rope is easy to slide, which has certain safety hazards;

2. After the pipe segment is put into the groove, the steel wire rope is pressed at the bottom of the pipe, and the steel wire rope needs to be manually lifted up to pull out the steel wire rope, which is time-consuming and laborious;

3. Only one pipe joint can be hoisted at a time, and the construction efficiency is not high.

Contents of the invention

The purpose of the present invention is to solve the above problems, to provide a quick hoisting sling for sewage pipes and its construction method, which can improve construction efficiency under the premise of ensuring construction safety.

The invention provides a quick-lifting sling for sewage pipelines, which is characterized in that it includes a rectangular frame beam welded by two beams and two longitudinal beams, and two supports parallel to the two longitudinal beams are inserted between the two beams. The two ends of each support rod respectively penetrate to the outside of the two beams and are screwed to the first stop nut; the top surface of each longitudinal beam is welded with two lifting lugs, and the distance between the two longitudinal beams is greater than the diameter of the sewage pipe. The distance between the rods is smaller than the diameter of the sewage pipe; the longitudinal beam is a sleeve-type telescopic structure, including a first segment and a second segment, and one end of the first segment and the second segment are respectively welded to two beams, the first The other end of the segment is movably interspersed in the other end of the second segment; an ear plate is welded to the outside of the first segment and the second segment of the longitudinal beam respectively, and a limit screw is inserted between the two ear plates. The two ends of the limit screw are respectively screwed with the second limit nuts on the outer sides of the two ear plates.

A construction method for fast hoisting of sewage pipelines provided by the present invention, using the above-mentioned sling, is characterized in that it includes the following steps:

(1) Put the pipeline section to be lifted flat on the ground; the pipeline section has 1-3 sections, and when there are 2 or 3 sections, each section is butted head to tail into a row in advance;

(2) Take off the two supporting rods on the frame beam, and loosen the second limit nut on the limit screw rod, and adjust the length of the longitudinal beam to be greater than the length of the pipeline segment to be lifted;

(3) Connect the lifting lugs on the two longitudinal beams to the hooks of the crane respectively through the lifting rope, lift the frame beam above the pipe segment with the crane and lower it slowly, put the pipe segment in the frame beam, and place the The frame beams are placed flat on the ground;

(4) Push the two beams in opposite directions so that the two beams are respectively close to the two ends of the pipe segment, and then tighten the second limit nut on the limit screw;

(5) The two supporting rods are respectively pierced from both sides of the pipeline segment to the two beams, and the first stop nuts are respectively screwed on both ends of the supporting rods;

(6) The crane slowly lifts the frame beam upwards until the two supporting rods support the pipe section, then continues to lift upwards, lifts the pipe section off the ground, and after standing in the air for 1 minute, lifts the pipe section to the installation The installation position in the groove;

(7) The crane loosens the hook and places the spreader on the ground;

(8) Loosen the first limit nuts on the two supporting rods, and pull out the two supporting rods;

(9) The crane lifts the frame beam upwards and returns to lift the next pipeline segment.

The invention can lift the pipeline segment by supporting the two supporting rods, the crossbeams at both ends of the sling can prevent the pipeline segment from sliding longitudinally, and the sling can be quickly removed after the lifting is in place, which is safer than the existing wire rope binding lifting method High performance, fast lifting speed; 1-3 sections can be lifted at one time, and the construction efficiency is high.

Description of drawings

Fig. 1 is the plane structure schematic diagram of spreader;

Fig. 2 is a schematic plan view of the joint of two segments of the longitudinal beam of the spreader;

Fig. 3 is a cross-sectional structural schematic diagram of the joint of two segments of the longitudinal beam of the spreader;

Fig. 4 is a schematic diagram of the state when the sling lifts the pipeline segment;

Fig. 5 is a schematic cross-sectional view of the pipe section being lifted by the spreader.

detailed description

As shown in Fig. 1, Fig. 2 and Fig. 3, the fast hoisting sling for sewage pipes includes a rectangular frame beam welded by two beams 1 and two longitudinal beams 2, and two cross beams 1 pass through two horizontal beams parallel to the two longitudinal beams. row of support rods 3, the two ends of each support rod respectively penetrate to the outer sides of the two beams and are screwed to the first limit nut 4; the top surface of each longitudinal beam is welded with two lifting lugs 5, and the distance between the two longitudinal beams is greater than that of sewage The diameter of the pipeline and the distance between the two supporting rods are smaller than the diameter of the sewage pipeline.

The longitudinal beam 2 is a telescopic telescopic structure, including a first section 21 and a second section 22, one end of the first section and the second section are respectively welded to two beams, and the other end of the first section is movable Interspersed within the other end of the second segment. With the above structure, the length adjustment of the longitudinal beam can be realized by adjusting the length of the first section inserted in the second section.

The outer sides of the first segment 21 and the second segment 22 of the longitudinal beam are respectively welded with an ear plate 6, and a limit screw 7 is installed between the two ear plates, and the two ends of the limit screw are screwed on the outer sides of the two ear plates respectively. Connect to the second limit nut 8. The above structure can restrict the outward sliding of the first segment of the longitudinal beam after the length adjustment of the longitudinal beam is completed; the limiting screw can also serve as a reinforcement of the longitudinal beam.

When the present invention is actually implemented, the two sections of the longitudinal beam can be square steel pipes or round steel pipes, and the outer diameter of the first section 21 is equal to or smaller than the inner diameter of the second section 22, so that the two sections can be inserted into each other. catch.

As shown in Figure 4 and Figure 5, the construction method of lifting the sewage pipeline with the above-mentioned spreader is as follows:

(1) Put the pipeline segment 9 to be lifted flat on the ground; the pipeline segment 9 can be one segment, or two, up to three; when there are two or three segments, each pipeline Segments are joined head to tail into a row;

(2) The two support rods on the frame beam are not installed earlier, and the second stop nut 8 on the stop screw rod 7 is loosened, and the length of the adjustment longitudinal beam is greater than the length of the pipeline segment to be lifted;

(3) The four lifting lugs on the two longitudinal beams are respectively connected to the hooks of the crane through the lifting rope, and the frame beam is hoisted above the pipe section by the crane and lowered slowly, and the pipe section 9 is set in the frame beam, Lay the frame beams flat on the ground as well;

(4) Push the two crossbeams 1 in opposite directions so that the two crossbeams are respectively close to the two ends of the pipe segment, then tighten the second stop nut 8 on the stop screw 7 to lock the length of the longitudinal beam;

(5) The two supporting rods 3 are respectively pierced from both sides of the pipeline segment to the two beams 1, and the first stop nuts 4 are respectively screwed on both ends of the supporting rods;

(6) The crane slowly lifts the frame beam upwards until the two supporting rods 3 support the pipe segment 9, then continues to lift upwards, lifts the pipe segment off the ground, and places it in the air for about 1 minute, then lifts the pipe segment Lift to the installation position in the installation groove;

(7) The crane loosens the hook and lowers the spreader to the ground;

(8) Loosen the first limit nut 4 on the two supporting rods 3, and pull out the two supporting rods;

(9) The crane lifts the frame beam upwards and returns to lift the next pipeline segment.

Claims (2)

1. The utility model provides a sewage pipeline hoists hoist fast which characterized in that: the device comprises a rectangular frame beam formed by welding two cross beams and two longitudinal beams, wherein two supporting rods parallel to the two longitudinal beams penetrate between the two cross beams, and two ends of each supporting rod respectively penetrate through the outer sides of the two cross beams and are in threaded connection with first limiting nuts; two lifting lugs are welded on the top surface of each longitudinal beam, the distance between the two longitudinal beams is larger than the diameter of the sewage pipeline, and the distance between the two supporting rods is smaller than the diameter of the sewage pipeline; the longitudinal beam is of a telescopic structure and comprises a first section and a second section, one ends of the first section and the second section are respectively welded with the two cross beams, and the other end of the first section is movably inserted into the other end of the second section; the first section and the second section of longeron outside weld an otic placode respectively, wear to establish a stop screw between two otic placodes, the stop screw both ends are respectively at two otic placode outsides spiro union second stop nut.

2. A rapid hoisting construction method for a sewage pipeline adopts the hoisting tool of claim 1, and is characterized by comprising the following steps:

(1) Horizontally placing the pipeline segment to be lifted on the ground; the pipeline segments comprise 1-3 segments, and when 2 or 3 segments exist, the segments are butted end to end in advance to form a line;

(2) Taking down the two supporting rods on the frame beam, loosening a second limit nut on the limit screw rod, and adjusting the length of the longitudinal beam to be greater than that of the pipeline section to be lifted;

(3) Connecting lifting lugs on the two longitudinal beams with lifting hooks of a crane through lifting ropes respectively, hoisting the frame beam above the pipeline segment by the crane and slowly lowering the frame beam, sleeving the pipeline segment in the frame beam, and horizontally placing the frame beam on the ground;

(4) Pushing the two cross beams in opposite directions to enable the two cross beams to be close to the two ends of the pipeline section respectively, and then screwing a second limiting nut on the limiting screw rod;

(5) Two bearing rods are respectively arranged on the two cross beams in a penetrating manner from two sides of the pipeline section, and two ends of each bearing rod are respectively screwed with a first limiting nut;

(6) The crane slowly lifts the frame beam upwards until the two bearing rods support the pipeline segment, the frame beam is continuously lifted upwards, the pipeline segment is lifted away from the ground, and the pipeline segment is lifted to the installation position in the installation groove after standing in the air for 1 minute;

(7) The crane loosens the lifting hook and places the lifting appliance on the ground;

(8) Loosening the first limiting nuts on the two bearing rods, and drawing out the two bearing rods;

(9) The crane lifts the frame beam upwards and returns to lift and hang the next pipeline segment.

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