CN220059430U

CN220059430U - Folding cat ladder

Info

Publication number: CN220059430U
Application number: CN202321080234.2U
Authority: CN
Inventors: 刘璇; 孟新; 孙余; 王佳琦
Original assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Current assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-11-21
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a folding cat ladder in the technical field of engineering machinery auxiliary equipment, and aims to solve the problem that in the prior art, a machine body of a rotary drilling rig is ultra-wide in the transportation process. The crawling ladder can be folded in the transportation working process of the rotary drilling rig, saves space and effectively avoids the whole machine body from being ultra-wide.

Description

Folding cat ladder

Technical Field

The utility model relates to a folding cat ladder, and belongs to the technical field of auxiliary equipment of engineering machinery.

Background

At present, most engineering machinery is provided with a ladder stand, so that a sufficient use space is reserved in a rotary drilling rig body, the ladder stand of a medium-and-large-sized rotary drilling rig is ultra-wide after being installed, a loading and unloading truck is required to disassemble and assemble the ladder stand, and inconvenient transportation is caused in the transition transportation process.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a folding cat ladder which can be folded in the transportation working process of a rotary drilling rig, so that the space is saved, and the whole ultra-wide machine body is effectively avoided.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: the utility model provides a folding cat ladder, the cat ladder is located on the sidedoor of dig the rig soon, the sidedoor is connected with the cat ladder through a plurality of coupling assembling, promotes through coupling assembling can realize the switching of cat ladder expansion state and folding state.

Optionally, the coupling assembling includes first coupling assembling and second coupling assembling, the quantity of first coupling assembling and second coupling assembling is 2, first coupling assembling locates the cat ladder upside the cat ladder downside is located to the second coupling assembling.

Optionally, the first coupling assembling includes mount pad and upper junction plate, on the sidedoor was located to the upper junction plate, upper junction plate one end is connected with the upper junction plate through the kingpin, the kingpin passes the upper junction plate, is fixed through vice round pin after the lateral wall of upper junction plate, the other end of upper junction plate is connected with the cat ladder through the pivot.

Optionally, the second coupling assembling includes mount pad and lower connecting plate down, down the mount pad is located on the sidedoor, and it is equipped with the connecting seat, the connecting seat is connected through the pivot with lower connecting plate, the other end and the cat ladder downside of connecting plate rotate and are connected down.

Optionally, the device comprises indexing pins, wherein the number of the indexing pins is 2, the indexing pins are arranged on side doors corresponding to two sides of the middle of the ladder through side door mounting plates, and fixing holes are formed in positions, corresponding to the indexing pins, of the ladder.

Optionally, the upper mounting seat and the lower mounting seat are connected with the side door through bolts.

Compared with the prior art, the utility model has the beneficial effects that:

the cat ladder provided by the utility model can be folded or unfolded, and when the rotary drilling rig is in a transportation state, the cat ladder is folded, so that the width of the whole machine can be controlled within 3.5 meters, and the whole machine is prevented from being ultra-wide, thereby meeting the requirement of transportation width; when the rotary drilling rig is in a working state, the crawling ladder can be unfolded, so that maintenance personnel can conveniently use the crawling ladder to maintain the rotary drilling rig up and down, and the rotary drilling rig is simple to operate and convenient to use.

Drawings

FIG. 1 is a schematic view of an unfolded structure of a folding ladder according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a folding ladder according to an embodiment of the utility model;

FIG. 3 is a schematic view illustrating a first connection assembly of a folding ladder according to an embodiment of the utility model;

FIG. 4 is a schematic view of an exploded view of a first connection assembly of a folding ladder according to an embodiment of the utility model;

FIG. 5 is a schematic view of a second connection assembly of a folding ladder according to an embodiment of the utility model;

FIG. 6 is a schematic view of an exploded view of a second connection assembly of a folding ladder according to an embodiment of the utility model;

in the figure: 1 side door, 2 cat ladder, 3 first coupling assembling, 31 upper mount pad, 32 upper connecting plate, 33 kingpin, 34 vice round pin, 4 second coupling assembling, 41 lower mount pad, 42 lower connecting plate, 5 index pin, 6 pivot.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

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 can be understood by those of ordinary skill in the art in a specific case.

As shown in fig. 1-2, the folding ladder stand provided by the embodiment of the utility model is arranged on a side door 1 of a rotary drilling rig, and symmetrical upper mounting holes and lower mounting holes are respectively arranged on the upper part and the lower part of the ladder stand 2. The cat ladder 2 is connected with the sidedoor 1 through a plurality of coupling assembling, and specifically, the upside both ends of cat ladder 2 are connected with the sidedoor 1 through first coupling assembling 3, and the downside both ends are connected with the sidedoor 1 through second coupling assembling 4.

Referring to fig. 3 to 4, the first connecting assembly 3 includes an upper mounting seat 31 and a lower connecting plate 32, and the upper mounting seat 31 is disposed on the side door 1 by bolts, but not limited thereto, and other fasteners are also possible. One end of the upper connecting plate 32 is connected with the upper mounting seat 31 through a main pin 33, and the main pin 33 penetrates through the upper connecting plate 32 and the side wall of the upper mounting seat 31 and is fixed through a secondary pin 34. The other end of the upper connecting plate 32 is connected with an upper mounting hole of the cat ladder 2 through a rotating shaft 6.

Referring to fig. 5 to 6, the second connecting assembly 4 includes a lower mounting seat 41 and a lower connecting plate 42, the lower mounting seat 41 is disposed on the side door 1 through a bolt, a connecting seat is disposed on the lower mounting seat 41, the connecting seat is composed of two relatively parallel plates, and one end of the lower connecting plate 42 is inserted between the connecting seats and connected through the rotating shaft 6. The other end of the lower connecting plate 42 is rotatably connected with the lower mounting hole of the ladder stand 2, and the rotation connection can be realized through rotating parts such as a rotating shaft, a pin shaft and the like.

The ladder stand further comprises an indexing pin 5, fixing holes are formed in two sides of the middle of the ladder stand 2, the indexing pin 5 is arranged on the side door 1 corresponding to the fixing holes through a side door mounting plate, and the indexing pin 5 can further fasten the ladder stand 2.

The working principle of the utility model is as follows: when the rotary drilling rig is in the process of transportation and working, the ladder stand 2 is in a folded state, as shown in fig. 2, the ladder stand 2 is only required to be pushed upwards, the upper connecting plate 32 rotates around the main pin 33, the two ends of the lower connecting plate 42 rotate with the positions of the lower mounting seat 41 and the ladder stand 2 respectively, the ladder stand 2 is close to the side door 1, and accordingly folding occurs, and when the ladder stand 2 is folded to a specified position, the indexing pin 5 can be inserted into a fixing hole of the ladder stand 2 to further fix the ladder stand 2.

As shown in fig. 1, when the rotary drilling rig is not in a working state, if the ladder 2 is needed, the index pin 5 is loosened first, and the ladder 2 is pulled down, so that the upper connecting plate 32 rotates around the main pin 33, and the two ends of the lower connecting plate 42 rotate with the positions of the lower mounting seat 41 and the ladder 2 respectively, and when the ladder 2 is unfolded to the maximum, the rotary drilling rig can be conveniently used by a worker.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The folding cat ladder is characterized in that the cat ladder is arranged on a side door of a rotary drilling rig, the side door is connected with the cat ladder through a plurality of connecting components, and switching between an unfolding state and a folding state of the cat ladder can be achieved by pushing the connecting components;

the connecting assembly comprises a first connecting assembly and a second connecting assembly, the number of the first connecting assembly and the number of the second connecting assembly are both 2, the first connecting assembly is arranged on the upper side of the crawling ladder, and the second connecting assembly is arranged on the lower side of the crawling ladder;

the first connecting assembly comprises an upper mounting seat and an upper connecting plate, the upper mounting seat is arranged on the side door, one end of the upper connecting plate is connected with the upper mounting seat through a main pin, the main pin penetrates through the upper connecting plate and the side wall of the upper mounting seat and then is fixed through an auxiliary pin, and the other end of the upper connecting plate is connected with the cat ladder through a rotating shaft;

the second coupling assembling includes lower mount pad and lower connecting plate, lower mount pad is located on the sidedoor, and it is equipped with the connecting seat, the connecting seat is connected through the pivot with lower connecting plate, the other end of lower connecting plate rotates with the cat ladder downside and is connected.

2. The folding ladder of claim 1, comprising index pins, wherein the number of the index pins is 2, the index pins are arranged on side doors corresponding to two sides of the middle of the ladder through side door mounting plates, and fixing holes are formed in positions, corresponding to the index pins, of the ladder.

3. The folding ladder of claim 1 wherein the upper mount and the lower mount are each connected to the side door by bolts.