CN211287490U - Staircase and excavator - Google Patents

Staircase and excavator Download PDF

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Publication number
CN211287490U
CN211287490U CN201922232127.7U CN201922232127U CN211287490U CN 211287490 U CN211287490 U CN 211287490U CN 201922232127 U CN201922232127 U CN 201922232127U CN 211287490 U CN211287490 U CN 211287490U
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China
Prior art keywords
escalator
frame body
excavator
vertical rods
rotate
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Active
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CN201922232127.7U
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Chinese (zh)
Inventor
李长杰
杨浩
刘鹏
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Sany Heavy Machinery Ltd
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Sany Heavy Machinery Ltd
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Priority to CN201922232127.7U priority Critical patent/CN211287490U/en
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Abstract

The utility model provides a pair of staircase and excavator relates to engineering construction equipment technical field to solve the technical problem that the operation of the excavator production is interfered to the quick-witted equipment on the inconvenient and peripheral hardware of getting on and off the driver in a certain degree. The utility model provides an escalator, which is used for an excavator and comprises a first escalator and a second escalator; one end of the first escalator is rotatably connected with a frame body of the excavator and can rotate on a plane where the frame body is located; the other end of the first escalator is rotatably connected with one end of the second escalator, so that the second escalator can be folded or unfolded relative to the first escalator. When the machine needs to be operated, the first escalator and the second escalator can be rotated out of the frame body through the rotation of the first escalator on the frame body, and the second escalator is rotated towards the ground to realize the machine operation. After the excavator is operated, the second escalator is lifted up, and the second escalator is turned into the frame body through the first escalator to be retracted, so that the interference on the operation of the excavator is avoided.

Description

Staircase and excavator
Technical Field
The utility model belongs to the technical field of engineering construction equipment technique and specifically relates to a staircase and excavator is related to.
Background
The excavator driver is very inconvenient in the process of excavating the cab of the excavator up and down, particularly for a large excavator, so in the prior art, the driver is assisted to get on or off the excavator by the external escalator, but the external escalator is easy to interfere with the opening and closing of the cab and the driving operation.
Therefore, it is urgently needed to provide an escalator to solve the problems existing in the prior art to a certain extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an staircase and excavator to solve the inconvenient and peripheral hardware equipment of getting on and off the driver in a certain degree and produce the technical problem who interferes to the excavator operation.
The utility model provides an escalator, which is used for an excavator and comprises a first escalator and a second escalator; one end of the first escalator is rotatably connected with a frame body of the excavator and can rotate on a plane where the frame body is located; the other end of the first escalator is rotatably connected with one end of the second escalator, so that the second escalator can be folded or unfolded relative to the first escalator.
The first escalator is provided with a rotating part at one end connected with the frame body, the rotating part is fixedly connected with the frame body, and the first escalator rotates on the plane of the frame body through the rotating part.
Specifically, the first escalator comprises two first vertical rods extending along a first direction and a plurality of first cross rods located between the first vertical rods and extending along a second direction; the second escalator comprises two second vertical rods extending along the first direction and a plurality of second cross rods located between the second vertical rods and extending along the second direction; one ends of the two first vertical rods, which are close to the second vertical rods, are provided with first connecting parts, and one ends of the two second vertical rods, which are close to the first vertical rods, are provided with second connecting parts; the first connecting part is rotatably connected with the second connecting part, so that the second escalator can be folded or unfolded relative to the first escalator.
Furthermore, a cylindrical protruding part is arranged on the first connecting part, and a first groove corresponding to the cylindrical protruding part is formed in the second connecting part; the cylindrical protruding part can be clamped into the first groove, so that the second ladder can be folded or unfolded relative to the first ladder.
Furthermore, a first connecting hole is formed in the first connecting part, and a second connecting hole is formed in the second connecting part; the first connecting hole and the second connecting hole are collinear, and a connecting piece is arranged in the first connecting hole and the second connecting hole, so that the second escalator can rotate relative to the first escalator by taking the connecting piece as a rotating shaft.
And one end of the second vertical rod, which is far away from the first vertical rod, is provided with a support leg, and the support leg is arranged along the extending direction of the second cross rod.
Specifically, the legs include a first leg and a second leg; one of the second upright stanchions is connected with the first leg to form a T-shaped structure; and the other second upright rod is connected with the second supporting leg to form an L-shaped structure.
Furthermore, the rotating part is a bearing, and the first escalator is provided with a containing hole; the inner ring of the bearing is fixedly connected with the frame body, the outer ring of the bearing is fixedly connected with the inner wall of the accommodating hole, and therefore the first escalator can rotate on the plane where the frame body is located by taking the axis of the bearing as a rotation axis.
Compared with the prior art, the utility model provides an escalator has following advantage:
the utility model provides an escalator, which is used for an excavator and comprises a first escalator and a second escalator; one end of the first escalator is rotatably connected with a frame body of the excavator and can rotate on a plane where the frame body is located; the other end of the first escalator is rotatably connected with one end of the second escalator, so that the second escalator can be folded or unfolded relative to the first escalator.
Therefore, analysis shows that when a driver needs to operate the machine, the first escalator is firstly rotated out of the frame body, then the second escalator is folded relative to the first escalator, and one end of the second escalator, which is far away from the first escalator, is supported, so that the operation of the driver is realized.
After a driver operates the machine, the second escalator is lifted on the frame body, so that the second escalator is unfolded relative to the first escalator. And the first escalator is shifted into the frame body, so that the escalator is recovered, and the escalator is prevented from interfering the opening and closing of a door of the cab of the excavator and the operation of the excavator.
In addition, the utility model also provides an excavator, which comprises the escalator, the cab and the frame body; the cab can rotate on the plane of the frame body; the frame body is provided with a first fixing piece, the first fixing piece is connected with the rotating piece in a rotating mode, so that the first escalator can rotate on the plane of the frame body by taking the axis of the first fixing piece as a rotating axis, and the first escalator and the door of the cab are arranged correspondingly.
The frame body is further provided with a second fixing piece, and the second fixing piece is used for fixing the second escalator.
In the technical scheme, the second escalator can be unfolded or folded relative to the first escalator, and the first escalator can rotate on the plane where the frame body is located. When a driver operates the computer, the first escalator is firstly rolled out, and then the second escalator is folded, so that one end of the second escalator, which is far away from the first escalator, is supported, and the operation of the driver is realized. After a driver operates the excavator, the second escalator is lifted firstly, and then the first escalator is transferred into the frame body, so that the interference of the escalator to the operation of a cab or an excavator is avoided. Therefore, the escalator provided by the application can solve the technical problems that a driver is inconvenient to get on and off the machine and peripheral equipment interfere with the operation of the excavator to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of an escalator operating state according to an embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of a first escalator in the escalators provided by the embodiment of the present invention;
fig. 3 is a schematic view of the overall structure of a second escalator in the escalator provided by the embodiment of the present invention;
fig. 4 is a schematic view of the overall structure of the escalator in a standby working state according to the embodiment of the present invention;
fig. 5 is a schematic view of the overall structure of the escalator in a non-operating state according to the embodiment of the present invention;
fig. 6 is a schematic structural view of a second fixing member on a frame body in an excavator according to an embodiment of the present invention.
In the figure: 1-a first escalator; 101-a first upright rod; 102-a first cross-bar; 103-a receiving hole; 2-a second escalator; 201-a second upright stanchion; 202-a second cross bar; 3, a frame body; 301-a first fixture; 302-a second fixture; 3021-a second recess; 4-a rotating member; 5-a first connection; 501-cylindrical boss; 6-a second connection; 601-a first groove; 7-a first leg; 701-a projection; 8-a second leg; 9-cab.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 is a schematic view of an overall structure of an escalator operating state according to an embodiment of the present invention; fig. 2 is a schematic view of the overall structure of a first escalator in the escalators provided by the embodiment of the present invention; fig. 3 is an overall structure schematic diagram of a second escalator in the escalator provided by the embodiment of the present invention.
As shown in fig. 1-3, the utility model provides an escalator for an excavator, which comprises a first escalator 1 and a second escalator 2; one end of the first escalator 1 is rotatably connected with a frame body 3 of the excavator and can rotate on the plane of the frame body 3; the other end of the first staircase 1 is rotatably connected with one end of the second staircase 2, so that the second staircase 2 can be folded or unfolded relative to the first staircase 1.
Compared with the prior art, the utility model provides an escalator has following advantage:
the utility model provides a staircase when navigating mate need operate the computer, will first staircase 1 roll out support body 3, is folded second staircase 2 first staircase 1 relatively again, makes second staircase 2 keep away from the one end of first staircase 1 and can prop up ground to realize navigating mate's the computer.
When a driver operates the machine, the second escalator 2 is lifted, so that the second escalator 2 is unfolded relative to the first escalator 1. And then the first staircase 1 is shifted into the frame body 3 to realize the recycling of the staircase, thereby avoiding the staircase from interfering the opening and closing of the cab door of the excavator and the operation of the excavator.
Fig. 4 is the overall structure schematic diagram of the escalator standby working state provided by the embodiment of the present invention.
As shown in fig. 1-4, a rotating member 4 is disposed at one end of the first escalator 1 connected to the frame body 3, the rotating member 4 is fixedly connected to the frame body 3, and the first escalator 1 rotates on the plane of the frame body 3 through the rotating member 4.
The first escalator 1 can rotate on the frame body 3 by 360 degrees by using the axis of the rotating member 4 as a rotating axis through the rotating member 4, so that the position of the first escalator 1 and the frame body 3 can be adjusted as required. The first escalator 1 and the second escalator 2 can be constantly in a state of being recovered in the plane where the frame body 3 is located under the non-working state, and therefore interference to operation of a cab door and an excavator is avoided.
It should be added that, in this application, preferably, when a driver needs to operate the machine to rotate the first escalator 1 out of the frame body 3, the first escalator 1 is perpendicular to the frame body 3, so that the ends of the two second vertical rods 201 far away from the first escalator 1 can be fully contacted with the ground, and the stability of the escalator is ensured.
Specifically, as shown in fig. 1 to 4, the first escalator 1 includes two first vertical rods 101 extending along a first direction and a plurality of first cross bars 102 extending along a second direction between the first vertical rods 101; the second escalator 2 comprises two second vertical rods 201 extending along a first direction and a plurality of second cross rods 202 positioned between the second vertical rods 201 and extending along a second direction; one ends of the two first vertical rods 101, which are close to the second vertical rods 201, are provided with first connecting parts 5, and one ends of the two second vertical rods 201, which are close to the first vertical rods 101, are provided with second connecting parts 6; the first connecting part 5 is rotatably connected with the second connecting part 6 so that the second staircase 2 can be folded or unfolded relative to the first staircase 1.
When the escalator is needed, the first escalator 1 is rotated out of the frame body 3, the second escalator 2 can be folded relative to the first escalator 1 through the rotating connection of the first connecting part 5 and the second connecting part 6, namely, the second escalator 2 rotates towards the ground, and the second upright rod 201 is far away from one end of the first escalator 1.
After the machine is operated, a driver lifts the second escalator 2 on the first escalator 1, and the second escalator 2 can rotate into the plane of the frame body 3 along with the first escalator 1 by rotating the first escalator 1.
It should be added here that a pull rope or a handle can be provided on the two second vertical rods 201 of the second escalator 2 in the present application. When the escalator needs to be used, the escalator can be pulled out through the pull rope. When a driver operates the machine, the second escalator 2 can be pulled up through the pull rope and then is transferred into the frame body 3.
In addition, the first escalator 1 and the second escalator 2 can also be fixed with the frame body 3 through the pull ropes, so that the situation that the operation is interfered when the escalator rotates out of the frame body 3 when the excavator works is avoided.
When the second escalator 2 is in the unfolded state with respect to the first escalator 1, the second vertical rod 201 is collinear with the first vertical rod 101.
Further, as shown in fig. 1 to 4, a cylindrical protrusion 501 is disposed on the first connecting portion 5, and a first groove 601 corresponding to the cylindrical protrusion 501 is disposed on the second connecting portion 6; the cylindrical boss 501 can be clamped into the first groove 601, the axis of the cylindrical boss 501 is collinear with the axis of the first groove 601, and the cylindrical boss 501 can rotate in the first groove 601, so that the second escalator 2 can be folded or unfolded relative to the first escalator 1.
The first connecting portion 5 is provided with a cylindrical protruding portion 501, the second connecting portion 6 is provided with a corresponding first groove 601, and the cylindrical protruding portion 501 is clamped into the first groove 601, so that the first connecting portion 5 is connected with the second connecting portion 6.
And, since the first groove 601 is disposed corresponding to the cylindrical protrusion 501, the cylindrical protrusion 501 can rotate in the first groove 601. Therefore, the second escalator 2 can be rotated relative to the first escalator 1, and the second escalator 2 can be folded or unfolded relative to the first escalator 1.
It should be added that in the present application, the second connecting portion 6 is provided with a connecting groove, and the opening direction of the connecting groove is toward the first vertical rod 101. The first groove 601 is located on the inner wall surface of the connecting groove, the first connecting portion 5 can be inserted into the connecting groove, the cylindrical protrusion is clamped into the first groove 601, and the first escalator 1 is rotatably connected with the second escalator 2.
Preferably, the coupling slot of the present application is a semi-enclosed coupling slot. The rotation of the second escalator 2 can be limited by adopting the semi-surrounding connecting groove.
When the second staircase 2 is folded in relation to the first staircase 1, it can only be folded towards the ground. When the second escalator 2 is unfolded relative to the first escalator 1, the second escalator 2 can not be excessively lifted and always keeps on the same plane with the first escalator 1, so that the overall stability of the escalator in a non-use state is ensured.
Further, as shown in fig. 1-4, the first connecting portion 5 has a first connecting hole, and the second connecting portion 6 has a second connecting hole; the first connecting hole and the second connecting hole are collinear, and connecting pieces are arranged in the first connecting hole and the second connecting hole, so that the second escalator 2 can rotate relative to the first escalator 1 by taking the connecting pieces as rotating shafts.
The first connecting hole is formed in the first connecting portion 5, the second connecting hole is formed in the second connecting portion 6, and the first connecting hole is connected with the second connecting hole through the connecting piece, so that the second escalator 2 can be connected with the first escalator 1, and folding and unfolding relative to the first escalator 1 are achieved.
It should be added that the connecting piece in this application can be in a structure such as a bolt and a pin, and can be detachably connected with the first connecting hole and the second connecting hole, so that the first escalator 1 and the second escalator 2 can be detachably arranged, and the replacement or maintenance of the escalators is facilitated.
When the rotation connection between the first escalator 1 and the second escalator 2 is realized through the cylindrical protruding part 501 and the first groove 601, no connecting piece is arranged in the first connecting hole and the second connecting hole, so that the first connecting hole and the second connecting hole are in a separated state.
When the first connecting hole and the second connecting hole are used for realizing the rotating connection of the first escalator 1 and the second escalator 2, the cylindrical protruding part 501 is not arranged on the first connecting part 5, and the first groove 601 is not arranged on the second connecting part 6.
As shown in fig. 1 to 4, a leg is disposed at an end of the second vertical rod 201 away from the first vertical rod 101, and the leg is disposed along an extending direction of the second cross rod 202.
The support legs are arranged at one end of the second vertical rod 201 far away from the first vertical rod 101, so that the contact area of the second staircase 2 and the ground can be increased, and the stability of the second staircase 2 is improved.
In this application, preferably, the second escalator 2 and the first escalator 1 are attached to the plane of the frame body 3 in the non-operating state. Therefore, in this application, the support legs are arranged along the extending direction of the second cross bar 202, so that the stability of the second escalator 2 is improved, and the first escalator 1 and the second escalator 2 can be sufficiently attached to the frame body 3 in a non-working state.
Specifically, as shown in fig. 1-4, the legs include a first leg 7 and a second leg 8; one of the second upright rods 201 is connected with the first leg 7 to form a T-shaped structure; another second upright 201 is connected to the second leg 8 to form an L-shaped structure.
Because under non-operating condition, first staircase 1 and second staircase 2 need retrieve in support body 3, for avoiding retrieving support leg expenditure support body 3 on the second pole setting 201 that is close to the outside behind support body 3, produce the influence to operation and personnel. This application is connected second stabilizer blade 8 with retrieve into support body 3 back second pole setting 201 that is close to the outside to along the extension direction of second horizontal pole 202 to the inboard second pole setting 201 extension setting, and form L type structure with the second pole setting 201 in the outside, avoided the operation process and the staff on every side to the excavator to produce the influence.
The first support leg 7 and the inner second vertical rod 201 form a T-shaped structure, so that the stability of the second escalator 2 is ensured.
It should be added here that the first support leg 7 and the second support leg 8 are integrally formed with the second vertical rod 201, so as to ensure the overall strength and stability of the second escalator 2.
Further, as shown in fig. 1 to 4, the rotating member 4 is a bearing, and the first escalator 1 is provided with a receiving hole 103; the inner ring of the bearing is fixedly connected with the frame body 3, and the outer ring of the bearing is fixedly connected with the inner wall of the accommodating hole 103, so that the first staircase 1 can rotate on the plane of the frame body 3 by taking the axis of the bearing as a rotation axis.
The accommodating hole 103 in this application is a circular hole, and the first escalator 1 can be directly rotatably connected with the first fixing element 301 on the frame body 3 through the accommodating hole 103.
Preferably, a bearing is arranged in the accommodating hole 103, an inner ring of the bearing is fixedly arranged on the first fixing piece 301 on the frame body 3, and an outer ring of the bearing is fixedly connected with the inner wall of the accommodating hole 103 on the first escalator 1. The first escalator 1 can be conveniently and quickly connected with the frame body 3 in a rotating mode through the bearing. In addition, the problem that the accommodating hole 103 is abraded due to long-time rotation of the first escalator 1 directly connected to the first fixing member 301 can be avoided through the bearing.
Fig. 5 is an overall structure schematic diagram of the escalator in a non-operating state provided by the embodiment of the present invention.
In addition, as shown in fig. 1 to 5, the present invention further provides an excavator, which comprises the above escalator, a cab 9 and a frame body 3; the cab 9 can rotate on the plane of the frame 3; the frame body 3 is provided with a first fixing member 301, the first fixing member 301 is rotatably connected with the rotating member 4, so that the first escalator 1 can rotate on the plane of the frame body 3 by using the axis of the first fixing member 301 as a rotation axis, and the first escalator 1 is arranged corresponding to the door of the cab 9.
First staircase 1 in this application can be located between driver's cabin 9 and the support body 3, or set up the staircase in support body 3 and hold the chamber, make the staircase can retrieve in support body 3, also can be located support body 3 and deviate from the one side of driver's cabin 9.
The first escalator 1 is provided corresponding to the door of the cab 9 by the first fixing member 301, so that the driver can directly enter the cab 9 after getting on the excavator by the escalator.
Fig. 6 is a schematic structural view of a second fixing member on a frame body in an excavator according to an embodiment of the present invention.
As shown in fig. 1 to 6, a second fixing member 302 is further disposed on the frame body 3, and the second fixing member 302 is used for fixing the second escalator 2.
The second fixing member 302 in this application is a fixing sleeve, the first supporting leg 7 is provided with a protruding portion 701, and the sleeve is internally provided with a plurality of second grooves 3021. When the escalator is not in use, the first support leg 7 is inserted into the sleeve, and the protruding portion 701 is clamped into the second groove 3021, so that the second escalator 2 is clamped with the second fixing member 302 through the first support leg 7, and the first escalator 1 and the second escalator 2 can be fixed on the frame body 3 in a non-working state.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An escalator is used for an excavator and is characterized by comprising a first escalator and a second escalator;
one end of the first escalator is rotatably connected with a frame body of the excavator and can rotate on a plane where the frame body is located;
the other end of the first escalator is rotatably connected with one end of the second escalator, so that the second escalator can be folded or unfolded relative to the first escalator.
2. The escalator as claimed in claim 1, wherein a rotating member is disposed at an end of the first escalator connected to the frame body, the rotating member is fixedly connected to the frame body, and the first escalator rotates on the plane of the frame body through the rotating member.
3. An escalator as claimed in claim 2, wherein the first escalator comprises two first uprights extending in a first direction and a plurality of first cross bars extending in a second direction between the first uprights;
the second escalator comprises two second vertical rods extending along the first direction and a plurality of second cross rods located between the second vertical rods and extending along the second direction;
one ends of the two first vertical rods, which are close to the second vertical rods, are provided with first connecting parts, and one ends of the two second vertical rods, which are close to the first vertical rods, are provided with second connecting parts;
the first connecting part is rotatably connected with the second connecting part, so that the second escalator can be folded or unfolded relative to the first escalator.
4. The escalator as claimed in claim 3, wherein the first connecting portion is provided with a cylindrical protrusion, and the second connecting portion is provided with a first groove corresponding to the cylindrical protrusion;
the cylindrical protruding part can be clamped into the first groove, so that the second ladder can be folded or unfolded relative to the first ladder.
5. The escalator of claim 3, wherein the first connecting portion is provided with a first connecting hole, and the second connecting portion is provided with a second connecting hole;
the first connecting hole and the second connecting hole are collinear, and a connecting piece is arranged in the first connecting hole and the second connecting hole, so that the second escalator can rotate relative to the first escalator by taking the connecting piece as a rotating shaft.
6. An escalator as claimed in claim 3, wherein the second upright is provided with a foot at the end remote from the first upright, and the foot is disposed along the extension of the second cross bar.
7. The escalator of claim 6, wherein said legs include a first leg and a second leg;
one of the second upright stanchions is connected with the first leg to form a T-shaped structure;
and the other second upright rod is connected with the second supporting leg to form an L-shaped structure.
8. The escalator as claimed in claim 2, wherein the rotating member is a bearing, and the first escalator has a receiving hole;
the inner ring of the bearing is fixedly connected with the frame body, the outer ring of the bearing is fixedly connected with the inner wall of the accommodating hole, and therefore the first escalator can rotate on the plane where the frame body is located by taking the axis of the bearing as a rotation axis.
9. An excavator comprising the escalator of any one of claims 2 to 8, a cab and said frame;
the cab can rotate on the plane of the frame body;
the frame body is provided with a first fixing piece, the first fixing piece is connected with the rotating piece in a rotating mode, so that the first escalator can rotate on the plane of the frame body by taking the axis of the first fixing piece as a rotating axis, and the first escalator and the door of the cab are arranged correspondingly.
10. The excavator of claim 9 wherein the frame body is further provided with a second fixing member for fixing the second escalator.
CN201922232127.7U 2019-12-12 2019-12-12 Staircase and excavator Active CN211287490U (en)

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Application Number Priority Date Filing Date Title
CN201922232127.7U CN211287490U (en) 2019-12-12 2019-12-12 Staircase and excavator

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Application Number Priority Date Filing Date Title
CN201922232127.7U CN211287490U (en) 2019-12-12 2019-12-12 Staircase and excavator

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CN211287490U true CN211287490U (en) 2020-08-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110965930A (en) * 2019-12-12 2020-04-07 三一重机有限公司 Staircase and excavator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110965930A (en) * 2019-12-12 2020-04-07 三一重机有限公司 Staircase and excavator

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