CN215419516U

CN215419516U - Pipeline protection structure

Info

Publication number: CN215419516U
Application number: CN202120682506.0U
Authority: CN
Inventors: 蒋凯; 方三陵
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-04
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a pipeline protection structure, comprising: the two bearing parts are oppositely fixed on the foundations at two sides of the foundation pit; the two ends of the main rope are respectively connected to the two bearing parts; the winch is fixed between the bearing piece and the foundation pit and used for adjusting the tightness of the main cable, and the main cable is wound on the winch; the suspension assembly is hung on the main rope and comprises a sling, the upper end of the sling is connected with the main rope, the lower end of the sling is provided with a ring sleeve, and the sling is provided with a tightener. The pipeline protection structure adopts a mode of combining the bearing piece and the main cable to replace a rigid upper cross beam structure adopted at the present stage, and has light and high efficiency; by arranging the winch, the tightness of the main cable can be adjusted, so that the reduction of the suspension effect caused by the loosening of the main cable is eliminated; through setting up the leading wheel, guide the main rope trend to avoid the hoist cable to produce great horizontal pulling force to the pipeline, improve the protection effect to the pipeline. The pipeline protection structure has the advantages of simple and reliable structure, high economical efficiency, wide application range and capability of meeting the requirement of large-span pipeline protection.

Description

Pipeline protection structure

Technical Field

The utility model belongs to the field of pipeline protection, and particularly relates to a pipeline protection structure of a large-span foundation pit.

Background

At the present stage, due to urban planning, a large number of pipelines are buried underground, so that when a newly-built project is constructed, pipeline relocation and modification are often required, and the number of pipeline property right units is large, the examination and approval process involved in relocation and modification is long, and the cost is high. Therefore, the original pipeline is reserved in some small-span pipelines by means of upper steel beam suspension, lower support and the like. But these approaches are not suitable for large span pipeline protection.

At present, when the large-span pipeline protection is carried out in some units, the pipeline protection is carried out by adopting a cable tower inclined pulling mode, but the larger the span is, the larger the transverse pulling force applied to the pipeline is, the higher the cable towers on two sides are required to do, the instability of the structure can be caused in the uneconomical process, and moreover, the cable has elasticity, and the suspension effect can be reduced if no proper tensioning force (prestress) is available before the tie.

Disclosure of Invention

Aiming at the problems in the background art, the utility model provides a pipeline protection structure to solve the technical problems, and the utility model adopts the following technical scheme: a pipeline protection structure comprising: the two bearing parts are oppositely fixed on the foundations at two sides of the foundation pit; the two ends of the main rope are respectively connected to the two bearing parts; the winch is fixed between the bearing piece and the foundation pit and used for adjusting the tightness of the main cable, and the main cable is wound on the winch; the suspension assembly is hung on the main rope and comprises a sling, the upper end of the sling is connected with the main rope, the lower end of the sling is provided with a ring sleeve, and the sling is provided with a tightener.

Preferably, a buttress is fixedly arranged between the winch and the foundation pit, guide wheels are respectively arranged at the upper ends of the buttress, and the main cable is placed on the guide wheels.

Preferably, a plurality of groups of suspension assemblies are arranged at intervals along the length direction of the main cable

Preferably, a stress sensing alarm device is arranged on the sling.

Preferably, the carrier is an earth anchor.

Preferably, the ground anchor is fixed by adopting a concrete pouring mode.

Preferably, the loop set is a harness or a hanger.

Preferably, a cable clamp is provided at an upper end of the suspension cable, and the suspension cable is suspended from the main cable by the cable clamp.

Preferably, the capstan has positioning holes in the disc and the handle, and the capstan is prevented from rotating by inserting pins into the two positioning holes.

Preferably, the winch is provided with two rotating discs which are oppositely arranged, the two rotating discs are connected through a horizontal rotating shaft, two ends of the horizontal rotating shaft are connected to a supporting plate arranged below the horizontal rotating shaft, an outer limiting hole is formed in the circumferential edge of each rotating disc, an inner limiting hole matched with the outer limiting hole is formed in the supporting plate, and a limiting rod is inserted into the outer limiting hole and the inner limiting hole, so that the rotating discs are prevented from rotating.

Preferably, two winches are oppositely arranged on two sides of the foundation pit.

The pipeline protection structure has the advantages that:

1. the pipeline protection structure replaces a rigid upper cross beam structure adopted in the prior stage by adopting a mode of combining the bearing piece and the main cable, has light and high efficiency, can conveniently realize the adjustment of the tightness of the main cable by arranging the winch, and avoids insufficient suspension caused by the loosening of the main cable; the accurate adjustment to every hoist cable length is realized through the turn-buckle, and then makes every ring external member more laminate with the pipeline to can exert certain prestressing force, better protection pipeline.

2. This pipeline protection architecture through setting up the leading wheel, guides the main rope trend, conveniently ensures that the central line of the regional main rope in foundation ditch top is directly over the central line of pipeline, and two central lines are parallel to avoid the hoist cable to produce great horizontal pulling force to the pipeline, improve the protection effect to the pipeline.

3. This pipeline protection architecture through set up stress sensing alarm device on every hoist cable, can in time discover the lax of hoist cable to in time adjust, improve the protection effect to the pipeline.

Drawings

FIG. 1 is a schematic structural diagram of the present pipeline protection structure

FIG. 2 is a schematic view of a suspension assembly

FIG. 3 is a schematic view of the structure of the winch

The device comprises a bearing piece 1, a bearing piece 2, a winch 201, a turntable 202, a horizontal rotating shaft 203, a supporting plate 204, a base 205, a handle 206, an outer limiting hole 207, an inner limiting hole 208, a limiting rod 3, a buttress 4, a guide wheel 5, a suspension component 501, a cable clamp 502, a stress sensing alarm device 503, a wire tightener 504, a sling 505, a ring sleeve piece 6, a main cable 7 and a pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention is further illustrated by the following examples, which are not to be construed as limiting the utility model.

As shown in fig. 1 and 2, the pipeline protecting structure of the present invention comprises: the two bearing parts 1 are oppositely fixed on foundations at two sides of the foundation pit; a main rope 6, both ends of which are respectively connected to the two bearing parts 1; the winch 2 is fixed between the bearing part 1 and the foundation pit and used for adjusting the tightness of the main cable 6, and the main cable 6 is wound on the winch 2; the suspension assembly 5 is hung on the main rope 6, the suspension assembly 5 comprises a suspension rope 504, a rope clamp 501 is arranged at the upper end of the suspension rope 504, the rope clamp 501 is used for connecting the main rope 6 and the suspension rope 504, a ring sleeve 505 is arranged at the lower end of the suspension rope 504, the ring sleeve 505 can be a suspension rope (when the pipe diameter is larger) or a hanging bracket (when the pipe diameter is smaller), and a tightener 503 is arranged on the suspension rope 504 and used for adjusting the tightness of the suspension rope 504. The carrier 1 is preferably an earth anchor, and the manner of fixing the carrier 1 is selected according to the magnitude of the load, preferably a concrete pouring manner. In order to better protect the pipeline 7, a plurality of groups of suspension assemblies 5 are arranged at intervals along the length direction of the main cable 6.

When the cable is used, the tightness of the main cable 6 can be adjusted through the winch 2, and insufficient suspension caused by the loosening of the main cable 6 is avoided; the accurate adjustment of the length of the sling 504 is realized through the tightener 503, so that each ring set 505 is more fit with the pipeline 7, and certain prestress can be applied to better protect the pipeline 7.

In order to avoid that the suspension cable 504 generates a large transverse tension on the pipeline 7, it is necessary to ensure that the central line of the main cable in the area directly above the foundation pit is directly above the central line of the pipeline 7, and the two central lines are parallel. In order to achieve the purpose, a buttress 4 is further fixedly arranged between the winch 2 and the foundation pit, guide wheels 3 are respectively arranged above the buttress 4 to guide the trend of a main cable 6, and the main cable 6 is placed on the guide wheels 3.

In order to immediately find the looseness of the suspension ropes 504, a stress sensing alarm device 502 is arranged on each suspension rope 504, and when the suspension ropes 504 are loosened, the stress sensing alarm device sends out an alarm signal so as to adjust the main rope 6 and the suspension ropes 504 in time and improve the protection effect on the pipeline 7.

Further, as shown in fig. 3, the winch 2 has two opposite rotating discs 201, the two rotating discs 201 are connected through a horizontal rotating shaft 202, two ends of the horizontal rotating shaft 202 are connected to the concave arc surface of a supporting plate 203 arranged below the horizontal rotating shaft 202, a base 204 is fixedly connected to the lower end surface of the supporting plate 203, a handle 205 is arranged on the outer side wall of the rotating disc 201, the rotating disc can be driven to rotate by rotating the handle, so as to adjust the tightness of the main rope, a plurality of outer limiting holes 206 are uniformly distributed on the circumferential edge of the rotating disc 201, an inner limiting hole 207 matched with the outer limiting hole 206 is arranged on the supporting plate 203, a limiting rod 208 is inserted into the outer limiting hole 206 and the inner limiting hole 207, so as to prevent the rotating disc 201 from rotating.

Further, in order to realize bidirectional regulation and control of two sides of the foundation pit, two winches 2 can be oppositely arranged on two sides of the foundation pit.

The specific operation flow is as follows:

1. dig the hole that is used for burying underground the earth anchor in foundation ditch both sides, then adopt the concreting mode to fix the earth anchor, dig a pit in capstan winch 2's fixed position, adopt two pre-buried bolts of concreting mode, fix capstan winch 2 on the ground through nut and bolt cooperation, set up buttress 4 and leading wheel 3.

2. One end of a main cable 6 is fixed on the corresponding bearing piece 1, and the other end of the main cable 6 passes through the winch 2 and is fixedly connected with the other bearing piece 1 after the direction is adjusted by the guide wheel 3.

3. And (3) cutting the bottom of the pipeline 7 to be protected, and sleeving the hanging bracket or the hanging strip on the pipeline 7 to be protected.

4. The sling 504 is fixed on the main rope 6 through a rope clip 501, the lower part is connected with a hanging bracket or a sling, and the middle part is provided with a wire grip 503 and a stress sensing alarm device 502.

5. Rotating the winch 2, adjusting the vertical distance of the main cable 6, fixing the winch 2, screwing the tightener 503, and adjusting the elevation of the sling 504;

6. excavating the soil body below the pipeline 7, carrying out suspension protection on the pipeline 7, observing whether the stress sensing alarm device 502 gives an alarm or not in the process, and if the alarm occurs, adjusting in time.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A line protection structure, comprising:

the two bearing parts (1) are oppositely fixed on foundations on two sides of the foundation pit;

the two ends of the main rope (6) are respectively connected to the two bearing pieces (1);

the winch (2) is fixed between the bearing piece (1) and the foundation pit and used for adjusting the tightness of the main cable (6), and the main cable (6) is wound on the winch (2);

the suspension assembly (5) is hung on the main rope (6), the suspension assembly (5) comprises a sling (504), the upper end of the sling (504) is connected with the main rope (6), the lower end of the sling (504) is provided with a ring sleeve component (505), and the sling (504) is provided with a wire grip (503).

2. The pipeline protection structure according to claim 1, wherein a buttress (4) is fixedly arranged between the winch (2) and the foundation pit, a guide wheel (3) is arranged at the upper end of the buttress (4), and the main cable (6) is placed on the guide wheel (3).

3. A pipeline protecting structure according to claim 1, wherein a plurality of groups of suspension assemblies (5) are provided at intervals along the length of the main cable (6).

4. A pipeline protection architecture as claimed in claim 1, wherein a stress sensing alarm device (502) is provided on the sling (504).

5. A pipeline protection arrangement according to claim 1, characterised in that the carrier (1) is an earth anchor.

6. The pipeline protecting structure as claimed in claim 5, wherein the ground anchor is fixed by concrete pouring.

7. The line protection architecture of claim 1, wherein the loop assembly (505) is a harness or hanger.

8. The pipeline protecting structure according to claim 1, wherein a cable clamp (501) is provided at an upper end of the suspension cable (504), and the suspension cable (504) is suspended from the main cable (6) by the cable clamp (501).

9. The pipeline protection structure according to claim 1, wherein the winch (2) has two opposite rotating discs (201), the two rotating discs (201) are connected through a horizontal rotating shaft (202), two ends of the horizontal rotating shaft (202) are connected to a supporting plate (203) arranged below the horizontal rotating shaft, an outer limiting hole (206) is formed in the circumferential edge of the rotating disc (201), an inner limiting hole (207) matched with the outer limiting hole (206) is formed in the supporting plate (203), and a limiting rod (208) is inserted into the outer limiting hole (206) and the inner limiting hole (207), so that the rotating disc (201) is prevented from rotating.

10. A pipeline protecting structure according to claim 2, characterized in that two winches (2) are oppositely arranged at both sides of the foundation pit.