CN220434626U - Pipeline overhauls cat ladder - Google Patents

Abstract

The utility model discloses a pipeline overhaul crawling ladder, which comprises a plurality of climbing parts connected in sequence, wherein each climbing part comprises a support vertical pipe vertically arranged at the center of a pipeline, pedals are arranged on the left side and the right side of each support vertical pipe in a staggered mode, a plurality of support cross beams are horizontally arranged on the outer pipe wall at the upper part of each support vertical pipe, the outer sides of the support cross beams are abutted and fastened on the inner wall of the pipeline through propping pieces, a large-sector overhaul platform is arranged above each support cross beam, the tops of the support vertical pipes are provided with connecting sleeves, and two upper and lower adjacent support vertical pipes are connected through the sleeves; the whole device can be divided into a plurality of independent parts from top to bottom by arranging the plurality of climbing parts which are connected in sequence, so that the whole device is convenient to detach and install; in addition, each climbing part comprises a supporting vertical pipe, pedals, a supporting beam and an overhaul platform, after the overhaul platform is climbed by the pedals, the overhaul area or the operation activity space of workers is enlarged, the operation overhaul of the workers is greatly facilitated, and the condition that overhaul is not enough is reduced or avoided.

Description

Pipeline overhauls cat ladder

Technical Field

The utility model belongs to the technical field of crawling ladders, and particularly relates to a pipeline overhaul crawling ladder.

Background

In the maintenance of pipeline such as absorber pipeline, a maintenance ladder is usually used, and in general, the maintenance ladder is installed in the pipeline, and when in maintenance, a worker climbs to a proper height and then overhauls the pipeline.

In the prior art, through searching, the utility model patent with the Chinese patent publication number of CN105133648B discloses a special cat ladder for an inspection shaft, which mainly comprises a supporting cage and a ladder B, wherein the supporting cage comprises a plurality of steel rings c which are horizontally arranged and a plurality of steel columns d which are vertically arranged and are used for welding the plurality of steel rings c together, the supporting cage is fixed on the inner wall of a pipeline or a pipe shaft, the ladder B is fixed on one side of the supporting cage, and when the pipeline (the pipe shaft) is required to be overhauled, the cat ladder is climbed to an overhauling height and then overhauls.

However, the prior art solution described above finds the following drawbacks in implementation: because the overhaul platform is not arranged in the pipeline and the ladder is arranged on one side of the support protuberance and the pipeline, after the overhaul height is reached by the ladder, the pipeline near the ladder can only be overhauled and maintained, and the part of the pipeline far away from the ladder is difficult to reach, so that the maintenance is inconvenient; in addition, the whole support cage is welded and installed with the steel column, and especially when the pipeline is long, the installation and the disassembly are very inconvenient.

Disclosure of Invention

In view of the defects and drawbacks existing in the prior art, the utility model aims to provide a pipeline overhaul crawling ladder, which solves the problems that the pipeline crawling ladder in the prior art can only be overhauled and maintained for pipelines near the ladder after the pipeline crawling ladder climbs to an overhaul height, and the pipelines are far away from the ladder, the parts of the pipelines are difficult to reach, the maintenance is inconvenient, and the whole supporting cage and the steel column are welded and installed, especially when the pipelines are longer, the installation and the disassembly are very inconvenient.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a pipeline overhauls cat ladder, set up in the pipeline, including the climbing portion that connects gradually of a plurality of from the top down, every climbing portion all includes a vertical support standpipe that sets up at the pipeline center, the left and right sides of support standpipe is crisscross about being provided with pedal, the outer pipe wall on support standpipe upper portion is gone up the level and is provided with a plurality of supporting beams, the supporting beam bottom is provided with the connecting rib with the junction of support standpipe, the supporting beam outside is supported tightly the piece and is supported tightly on the pipeline inner wall, the supporting beam top is provided with large fan-shaped maintenance platform, virtual circular is constituteed with small fan-shaped opening to large fan-shaped maintenance platform, fan-shaped open-ended angle bisector sets up perpendicularly with pedal axis, the top of support standpipe is provided with adapter sleeve, upper and lower adjacent two support standpipe pass through the telescopic connection.

As a further improvement of the utility model, the jacking piece comprises a jacking bolt, one end of the jacking bolt is propped against the inner wall of the pipeline, and the other end of the jacking bolt is in threaded connection with the supporting beam.

As a further improvement of the utility model, three supporting beams of each climbing part are uniformly distributed on the circumference of the outer pipe wall of the supporting vertical pipe.

As a further improvement of the utility model, the sector angle of the sector opening is greater than 90 degrees and less than 120 degrees.

As a further improvement of the utility model, a sector plate capable of blocking the sector opening is rotatably arranged on the upper plane of the maintenance platform, and the sector angle of the sector plate is larger than that of the sector opening.

As a further improvement of the utility model, the maintenance platform is provided with an arc chute, and the bottom surface of the sector plate is provided with a sliding block which is in sliding fit with the arc chute.

As a further improvement of the utility model, the service platform is detachably arranged on the supporting beam through bolts.

As a further improvement of the utility model, the maintenance platform is provided with a plurality of meshes.

Compared with the prior art, the utility model has the following advantages:

1. the whole device can be divided into a plurality of independent parts from top to bottom by arranging the plurality of climbing parts which are sequentially connected from top to bottom, so that the whole device is convenient to detach and install;

in addition, each climbing part comprises a supporting vertical pipe, pedals, a supporting beam and an overhaul platform, so that one overhaul platform is arranged in the pipeline at each certain height, after the overhaul platform is climbed by the pedals, the overhaul area or the operation activity space of a worker is enlarged, the operation overhaul of the worker is greatly facilitated, and the condition that the overhaul is not enough is reduced or avoided;

in addition, with supporting beam tightly set up on the pipeline inner wall through the tight piece top, a plurality of tight pieces of top and supporting beam form the tight mechanism that expands of expanding the tight pipeline in the pipeline, can tightly set up in the pipeline with supporting the riser top through the tight piece of operation top, connection structure is simple, and the installation is dismantled conveniently, need not set up the mounting hole to the pipeline inner wall.

2. The jacking piece is set to be a jacking bolt, and the jacking operation and the loosening operation can be completed by screwing the bolt, so that the structure is simple and reliable.

3. Through rotating the sector plate that is provided with the ability to block up sector opening on the maintenance platform upper plane, after the climbing is to maintenance platform, can rotate the sector plate for sector opening is blocked up to the sector plate, thereby whole maintenance platform and sector plate form circularly, enlarge the operation space region, reduce and maintain the dead zone, avoid the condition that can't reach the maintenance point.

4. Through setting up a plurality of meshes on the maintenance platform, increase ventilation to alleviate whole weight.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic view of the structure of the present utility model (without pipes and only a partial number of climbing parts are shown);

FIG. 3 is a schematic view of a climbing portion;

FIG. 4 is an enlarged view of FIG. 3 at A;

in the figure: 1. a climbing part; 101. supporting a standpipe; 102. foot pedal; 103. a support beam; 104. a connecting rib; 105. a tightening member; 106. a maintenance platform; 107. a connection sleeve; 108. a fan-shaped opening; 109. a sector plate; 110. an arc chute; 111. mesh openings.

Detailed Description

The utility model is described in further detail below with reference to fig. 2-4. For the sake of clarity, only the structures related to the utility model are shown in the drawings.

For convenience of description, the coordinate system is defined as shown in fig. 2, and the left-right direction is a transverse direction, the front-rear direction is a longitudinal direction, and the up-down direction is a vertical direction.

The embodiment of the utility model discloses a pipeline overhaul crawling ladder. Referring to fig. 2, a pipeline overhauling ladder is arranged in a pipeline (not shown in the drawing), and comprises a plurality of climbing parts 1 which are sequentially connected from top to bottom, each climbing part 1 comprises a support vertical pipe 101 which is vertically arranged at the center of the pipeline, a connecting sleeve 107 is welded at the top of each support vertical pipe 101, two upper and lower adjacent support vertical pipes 101 are connected through the connecting sleeve 107, namely, the upper support vertical pipes 101 are inserted into the connecting sleeve 107 on the lower support vertical pipe 101 and are connected with the connecting sleeve 107 in a welding manner or are detachably connected through bolts, so that the whole pipeline overhauling ladder can be divided into a plurality of independent parts from top to bottom, and is convenient to detach and install. Pedals 102 are arranged on the left side and the right side of the support vertical pipe 101 in an up-down staggered mode, three support beams 103 are horizontally arranged on the outer pipe wall of the upper portion of the support vertical pipe 101, and the support beams 103 are uniformly distributed on the circumference of the outer pipe wall of the support vertical pipe 101; the junction of supporting beam 103 bottom and supporting standpipe 101 is provided with connecting rib 104, and the supporting beam 103 outside is supported through the tight piece 105 and is supported tightly on the pipeline inner wall, and a plurality of tight pieces 105 of top and supporting beam 103 form the tight mechanism that expands of expanding the pipeline in the pipeline, can be with supporting standpipe 101 top tight setting in the pipeline through operating tight piece 105, and connection structure is simple, and the installation is dismantled conveniently, need not set up the mounting hole to the pipeline inner wall.

As shown in fig. 4, the propping piece 105 comprises a propping bolt, one end of the propping bolt is propped against the inner wall of the pipeline, and the other end of the propping bolt is in threaded connection with the supporting beam 103; by setting the tightening member 105 as a tightening bolt, tightening and loosening operations can be completed by screwing the bolt, and the structure is simple and reliable.

As shown in fig. 2 and 3, a large sector-shaped overhauling platform 106 is arranged above the supporting beam 103, and the overhauling platform 106 is detachably arranged on the supporting beam 103 through bolts, and can also be directly welded on the supporting beam 103. In order to increase ventilation and reduce overall weight, the service platform 106 is provided with a plurality of mesh openings 111, or is directly made of a mesh opening 111 plate. The large sector of maintenance platform 106 and the small sector of sector opening 108 form a virtual circle, the angular bisector of sector opening 108 is perpendicular to the axis of pedal 102, and the sector angle of sector opening 108 is preferably greater than 90 degrees and less than 120 degrees. In addition, a sector plate 109 capable of blocking the sector opening 108 is rotatably arranged on the upper plane of the maintenance platform 106, the sector plate 109 can also be made of a mesh 111 plate, and the sector angle of the sector plate 109 is larger than the sector angle of the sector opening 108. Specifically, an arc chute 110 may be provided on the maintenance platform 106, and a slider (not shown in the drawing) slidably engaged with the arc chute 110 is provided on the bottom surface of the fan-shaped plate 109. Through setting up sector plate 109, after climbing on maintenance platform 106, can rotate sector plate 109 for sector plate 109 blocks up sector opening 108, thereby whole maintenance platform 106 and sector plate 109 form circularly, enlarge the operation space region, reduce and maintain the dead zone, avoid the condition that can not reach the maintenance point.

According to the utility model, one overhaul platform 106 is arranged in each pipeline at a certain height, and after the overhaul platform 106 is climbed by the pedals 102, the overhaul area or the operation activity space of a worker is enlarged, so that the operation overhaul of the worker is greatly facilitated, and the condition that overhaul is not enough is reduced or avoided.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. It should be understood that the detailed description is presented for purposes of understanding only and is not intended to limit the utility model to all other embodiments that may be obtained by one skilled in the art without making any inventive effort.

Claims (7)

1. Pipeline overhauls cat ladder sets up in the pipeline, its characterized in that: the climbing device comprises a plurality of climbing parts which are sequentially connected from top to bottom, each climbing part comprises a support vertical pipe vertically arranged at the center of a pipeline, pedals are arranged on the left side and the right side of each support vertical pipe in an up-down staggered mode, a plurality of support cross beams are horizontally arranged on the outer pipe wall on the upper portion of each support vertical pipe, connecting ribs are arranged at the joints of the bottoms of the support cross beams and the support vertical pipes, the outer sides of the support cross beams are tightly abutted to and fastened on the inner wall of the pipeline through propping pieces, a large-sector overhaul platform is arranged above each support cross beam, the large-sector overhaul platform and a small-sector fan-shaped opening form a virtual circle, an angle bisector of each fan-shaped opening is perpendicular to the axis of each pedal, connecting sleeves are arranged at the tops of the support vertical pipes, and the upper support vertical pipes and the lower adjacent support vertical pipes are connected through the sleeves; the jacking piece comprises a jacking bolt, one end of the jacking bolt is propped against the inner wall of the pipeline, and the other end of the jacking bolt is in threaded connection with the supporting beam.

2. The pipe inspection ladder of claim 1, wherein: the supporting beams of each climbing part are three, and the supporting beams are uniformly distributed on the circumference of the outer pipe wall of the supporting vertical pipe.

3. The pipe inspection ladder of claim 1, wherein: the fan angle of the fan-shaped opening is more than 90 degrees and less than 120 degrees.

4. The pipe inspection ladder of claim 1, wherein: the upper plane of the maintenance platform is rotatably provided with a sector plate which can block the sector opening, and the sector angle of the sector plate is larger than that of the sector opening.

5. The pipe inspection ladder of claim 4, wherein: the maintenance platform is provided with an arc chute, and the bottom surface of the sector plate is provided with a slide block which is in sliding fit with the arc chute.

6. The pipe inspection ladder of claim 1, wherein: the overhaul platform is detachably arranged on the supporting beam through bolts.

7. A pipeline inspection ladder according to any one of claims 1-6, wherein: and a plurality of meshes are arranged on the overhaul platform.