CN218624052U - Cat ladder for cable pipe jacking well - Google Patents

Abstract

The utility model relates to a cable jacking pipe is cat ladder for well, include along the vertical direction interval set for the distance and connect the at least a set of buffering platform on the wall of a well, the first side of each group buffering platform is connected bottom the cat ladder that corresponds, and the second side of each group buffering platform is towards the top of a set of cat ladder downwards, and first side and second side adjacent arrangement have the space between the top of a set of cat ladder down with the second side. Set for the distance at the vertical direction interval between the pipe jacking cat ladder and set up buffering platform, upwards and rural cat ladder has both formed the segmentation with the cat ladder respectively to the adjacent both sides face of buffering platform, still will scramble the action and form the transposition, and then will originally ten tens of meters the climbing operation and the height at possible high altitude risk minimizing to each cat ladder section place of falling, reduced the risk of pipe jacking well climbing.

Description

Cable is cat ladder for pipe jacking well

Technical Field

The utility model relates to a pipe jacking worker well technical field specifically is a cable is cat ladder for pipe jacking well.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The pipe-jacking method is a non-excavation technology of underground pipelines, and is characterized in that the pipeline laying is changed from open excavation to underground excavation, and the pipe-jacking method is widely applied to the construction of high-voltage cable channels, and is characterized in that overhead laying of power transmission lines is changed into buried cable laying, so that the full utilization of urban land resources is facilitated.

The influence of the construction of the high-voltage cable tunnel jacking pipes on traffic and surrounding pipelines can be reduced, and work wells are arranged at two ends of the tunnel formed by the jacking pipes for operation and maintenance personnel to patrol and inspect. The deep work well (generally 9-12 m) needs to be provided with a ladder at the well head to lead to the well bottom. When personnel go up and down the ladder, because the jack-up worker well is very high more than general cable shaft, the climbing process takes place the slip phenomenon easily, has great potential safety hazard.

The existing solution is that a buffering platform is arranged at intervals of the pipe-jacking crawling ladder for buffering and resting in the climbing process of personnel, the crawling ladder is still a complete ladder from a well head to the well bottom, the possibility that the personnel slide to fall from a high place still exists, and the potential safety hazard of the pipe-jacking crawling ladder is not fundamentally solved.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem that exists among the above-mentioned background, the utility model provides a cable is cat ladder for pipe-jacking well, vertical direction interval between the pipe-jacking cat ladder sets for the distance and sets up the buffering platform, upwards and rural cat ladder are arranged respectively to the adjacent both sides face of buffering platform, both formed the segmentation with the cat ladder, still will scramble the action and form the transposition, and then will originally ten or more meters scramble the operation and the height that possible high altitude risk minimizing to each cat ladder section place falls, the risk of pipe-jacking well climbing has been reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a first aspect provides a cat ladder for cable push pipe well, include along the vertical direction interval set for the distance and connect the at least a set of buffering platform on the wall of a well, the first side of each group's buffering platform is connected with the cat ladder bottom that corresponds, and the second side of each group's buffering platform faces the top of a set of cat ladder downwards, and first side and second side are adjacent arranges, have the space between the top of a set of cat ladder under and the second side.

The first side face is perpendicular to the second side face at 90 degrees.

Two adjacent crawling ladders are respectively connected to the adjacent well walls.

The cat ladder is including connecting two vertical cat ladder roof beams on the wall of a well, evenly distributed at the handrail of vertical cat ladder roof beam both sides and connect a plurality of cat ladder crossbeams between two vertical cat ladder roof beams. The ladder handrail is vertical to the well wall.

The buffering platform is connected with the well wall through at least two groups of cross braces.

The buffer platform is provided with a plurality of groups of vertical angle steels and horizontal angle steels which are connected to form a vertical face perpendicular to the buffer platform. Additional angle steel is additionally arranged between the vertical angle steels and is in the horizontal direction or the vertical direction. The additional angle steel is fixedly connected with the vertical angle steel and the horizontal angle steel.

The bottom of the ladder near the ground of the well bottom is provided with a footing fixed on the ground.

Compared with the prior art, the above one or more technical schemes have the following beneficial effects:

1. compare in the mode of traditional single cat ladder and reduced the height of staff when actually climbing, and then reduce and fall the risk.

2. Every a set of cat ladder bottom is connected with the buffering platform that corresponds, and the space that is used for climbing next a set of buffering platform is 90 transposition arrangements at least with current buffering platform, even take place to fall, the staff can fall on current buffering platform, and can not fall to next a set of buffering platform from the space, and then reduced and fallen the height, reduce the injury that probably produces after falling.

3. The crawling ladder is segmented, the segmented crawling ladder is arranged on the wall surface which is subjected to transposition by taking the buffering platform as the center, the total length of the crawling ladder cannot be changed, material consumption can be reduced compared with a mode of adopting the oblique crawling ladder which surrounds the well wall surface, and the size of a well pipe cannot be influenced.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic view of an overall structure of a ladder stand provided by one or more embodiments of the present invention;

fig. 2 is a schematic structural view of a ladder stand in a top view according to one or more embodiments of the present invention;

in the figure: 1. the vertical climbing ladder comprises a longitudinal climbing ladder beam 2, a climbing ladder beam 3, a climbing ladder handrail 4, a forward well wall 5, a lateral well wall 6, a buffer platform 7, vertical angle steel 8, horizontal angle steel 9, additional angle steel 10, an angle steel cross brace 11, a gap 12, a shaft bottom ground 13 and a bottom foot.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Just as described in the background art, the buffering platform is set up to present push pipe cat ladder interval settlement distance for personnel's buffering rest in the climbing process, and the cat ladder still is a complete ladder from well head to shaft bottom, and the possibility that personnel slided and falls from the eminence still exists, does not fundamentally solve the potential safety hazard of push pipe well cat ladder.

Following embodiment provides a cable jacking pipe cat ladder for well, sets for the distance at the vertical direction interval between jacking pipe cat ladder and sets up buffering platform, and the adjacent both sides face of buffering platform arranges the cat ladder upwards and rural area respectively, both forms the segmentation with the cat ladder, still will scramble the action and form the transposition, and then will be ten more meters originally the climbing operation and the height at possible high altitude risk minimizing to each cat ladder section place that falls, reduced the risk of jacking pipe well climbing.

The first embodiment is as follows:

as shown in fig. 1-2, the object of this embodiment is to provide a cable pipe jacking well ladder stand, which includes at least one set of buffer platforms 6 spaced apart by a predetermined distance in the vertical direction and connected to the wall of the well, a first side surface of each set of buffer platforms 6 is connected to the bottom of the corresponding ladder stand, a second side surface of each set of buffer platforms faces the top of the next set of ladder stand, the first side surface and the second side surface are arranged adjacent to each other, and a gap 11 is provided between the second side surface and the top of the next set of ladder stand.

Two adjacent crawling ladders are respectively connected to the adjacent well walls. In this embodiment, the cross-section of push pipe cat ladder is the rectangle, has four walls, wherein, explains with the forward wall of a well 4 that first group cat ladder is connected as an example the utility model discloses, it is corresponding, lateral wall of a well 5 is connected to second group cat ladder.

The cat ladder is including connecting two vertical cat ladder roof beams 1 on the wall of a well, evenly distributed at the handrail 3 of vertical cat ladder roof beam both sides and connect a plurality of cat ladder crossbeams 2 between two vertical cat ladder roof beams 1. The cat ladder handrail is perpendicular 3 with the wall of a well, but when personnel go up and down the cat ladder, gripping cat ladder handrail improves operation factor of safety.

In the embodiment, the well head extends to the well bottom along the ladder stand, and a buffer platform is arranged every 3 meters and used for buffering and resting of personnel. The buffer platform comprises a steel buffer surface with a certain thickness.

The buffer platform 6 is connected with the well wall through at least two groups of cross braces (angle steel cross braces 10), and the connection mode comprises the fixation of pre-buried iron pieces or expansion bolts.

And a vertical angle steel 7 and a horizontal angle steel 8 are arranged on the buffer platform 6 and are tightly connected through bolts to form a vertical surface perpendicular to the buffer platform. Further, additional angle steel 9 is additionally arranged between the vertical angle steels 7, the additional angle steel 9 can be arranged in the horizontal direction or the vertical direction, the vertical direction is taken as an example in the figure, and the additional angle steel can also be arranged into one or more paths, and the one path is taken as an example in the figure and used for increasing the stability of the buffer vertical surface. The additional angle steel 8 is connected with the vertical angle steel 7 and the horizontal angle steel 8 through bolts.

The first ladder stand and the first buffer platform are installed and then seen from the wellhead in a top view as shown in figure 2.

After climbing downwards from first cat ladder and putting first buffering platform, continue climbing the in-process downwards again, cat ladder installation direction has carried out the transposition of at least 90, and cat ladder mounted position becomes side wall of a well 5 by front wall of a well 4. A gap 11 is reserved between the buffer platform and the second ladder stand for the personnel to climb downwards continuously. Through the mode of cat ladder segmentation and transposition in buffering platform punishment, very big limit has reduced personnel and has taken place the risk that the eminence falls in the climbing in-process.

The bottom ladder stand and the bottom ground 12 are provided with feet 13 fixed on the ground, so that the bottom ladder stand is tightly connected with the ground.

Considering that the cable well space is limited, during the assembly, each part of the buffering platform can be dispersedly transported into the cable work well and uniformly assembled in the work well, and the buffering platform has certain flexibility.

The steel structure adopts a hot galvanizing process, so that the corrosion resistance effect is better, and the service life is long.

At present, the height of the cable jacking pipe well from a wellhead to the ground is about 10 meters, and the climbing pipe well is characterized in that a buffer platform is arranged every three meters, the ladder stand is segmented and indexed, the height operation and the high-altitude falling risk of ten meters are minimized to the ladder stand segment of three meters, and the climbing risk of the jacking pipe well is reduced.

Use the buffering platform 6 that the interval 3 meters set up as the example, the cat ladder section distance between adjacent two sets of buffering platforms 6 is 3 meters promptly, and the staff of height 1.7 meters is when the high parallel and level of a set of buffering platform at the top of the head face with last, and the sole face is apart from a set of buffering platform height down and is 1.3 meters, compares in the height when the mode of traditional single cat ladder has reduced the actual climbing of staff, and then reduces the risk of falling.

Every group of cat ladder bottom is connected with the buffering platform that corresponds, and is used for climbing the space of a set of buffering platform down, is 90 at least with current buffering platform, even take place to fall, the staff can fall on current buffering platform, and can not fall to a set of buffering platform down from the space, and then reduced and fallen the height, reduce the injury that probably produces after falling.

Above-mentioned structure will the cat ladder segmentation to arrange the cat ladder after the segmentation on using the buffering platform as the wall behind the transposition as the center, cat ladder total length can not change, compares in the mode that adopts the oblique cat ladder that encircles along the well wall face and can reduce material consumption, and can not influence the size of well casing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a cable is cat ladder for pipe jacking well which characterized in that: including along the vertical direction interval set distance and connect at least a set of buffering platform on the wall of a well, the first side of each group's buffering platform is connected with the cat ladder bottom that corresponds, and the second side of each group's buffering platform is towards the top of a set of cat ladder down, and first side and second side are adjacent to be arranged, have the space between the top of second side and a set of cat ladder down.

2. The cable pipe jacking well ladder of claim 1, wherein: the first side face is perpendicular to the second side face by 90 degrees.

3. The cable pipe jacking well ladder of claim 1, wherein: two adjacent crawling ladders are respectively connected to the adjacent well wall.

4. The cable pipe jacking well ladder of claim 1, wherein: the cat ladder is including connecting two vertical ladder roof beams on the wall of a well, evenly distributed at the handrail of vertical ladder roof beam both sides and connect a plurality of cat ladder crossbeams between two vertical ladder roof beams.

5. The cable jacking ladder for the well as claimed in claim 4, wherein: the handrail of the ladder stand is vertical to the well wall.

6. The cable pipe jacking well ladder of claim 1, wherein: the buffer platform is connected with the well wall through at least two groups of cross braces.

7. The cable pipe jacking well ladder of claim 1, wherein: and a plurality of groups of vertical angle steels and horizontal angle steels are arranged on the buffer platform and are connected to form a vertical face perpendicular to the buffer platform.

8. The cable jacking ladder for the well as claimed in claim 7, wherein: and additional angle steel is arranged between the vertical angle steel and is in the horizontal direction or the vertical direction.

9. The cable jacking ladder for the well as claimed in claim 8, wherein: and the additional angle steel is fixedly connected with the vertical angle steel and the horizontal angle steel.

10. The cable pipe jacking well ladder of claim 1, wherein: the bottom of the ladder near the ground of the well bottom is provided with a footing fixed on the ground.

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