CN211900429U - Ladder stand device, tower cylinder and wind generating set - Google Patents

Abstract

The embodiment of the application provides a cat ladder device, a tower section of thick bamboo and wind generating set relates to cat ladder technical field. This cat ladder device includes: the two side beams are arranged in parallel, each side beam comprises an inclined first side beam, and two opposite side surfaces of the two first side beams are provided with at least one strip-shaped clamping groove along the length direction; each connecting piece can slide along the clamping groove and comprises a connecting head and a connecting rod, the connecting head is positioned in the inner space of the clamping groove, the connecting rod extends out of the clamping groove, the diameter of the connecting head is larger than the opening width of the clamping groove, and the connecting rod is provided with a thread section; the two sides of each pedal are fixedly connected with the two opposite side surfaces of the two first side beams through connecting pieces. The ladder stand device can solve the technical problems that the ladder stand device in the prior art is large in installation forming workload, poor in universality or inconvenient to detach and replace due to damage of local parts, greatly reduces cost and can be produced in batches.

Description

Ladder stand device, tower cylinder and wind generating set

Technical Field

The application relates to cat ladder technical field, particularly, this application relates to a cat ladder device, a tower section of thick bamboo and wind generating set.

Background

The tower barrel of the wind generating set is a tower rod of wind power generation, and mainly plays a supporting role in the wind generating set and absorbs the vibration of the set. The tower body is one of the most important parts of the tower, and personnel need to pass through the ladder climbing device when entering the tower body.

At present, all adopt welded mode fixed between each part of cat ladder device. However, the ladder stand device fixed by welding has a large installation and forming workload, and the fixed and formed ladder stand device cannot adjust the structure according to the actual construction situation, so that the universality is poor, and the detachment and replacement are inconvenient when local parts are damaged.

SUMMERY OF THE UTILITY MODEL

The application provides a cat ladder device, a tower section of thick bamboo and wind generating set to the shortcoming of current mode for solve the installation of the cat ladder device that prior art exists and take shape the technical problem that work load is big, the commonality is poor or local spare part damages the inconvenient dismantlement of change.

In a first aspect, the present application provides a ladder climbing device, which is used for being fixedly connected with a tower body, and includes:

the two side beams are arranged in parallel, each side beam comprises an inclined first side beam, and two opposite side surfaces of the two first side beams are provided with at least one strip-shaped clamping groove along the length direction;

each connecting piece can slide along the clamping groove and comprises a connecting head and a connecting rod connected to the connecting head, the connecting head is located in the inner space of the clamping groove, the connecting rod extends out of the clamping groove, the diameter of the connecting head is larger than the opening width of the clamping groove, and the connecting rod is provided with a threaded section;

the two sides of each pedal are fixedly connected with the two opposite side surfaces of the two first side beams through connecting pieces.

In one possible implementation, each side beam further includes:

one end of each second side beam is correspondingly and fixedly connected with one end of one first side beam; two opposite side surfaces of the two second side beams are provided with at least one strip-shaped clamping groove along the length direction;

the ladder climbing device further comprises:

and two sides of the working platform are fixedly connected with two opposite side surfaces of the two second side beams through connecting pieces.

In one possible implementation, the ladder climbing device further comprises:

the guardrail on two sides is respectively fixedly connected with the two side beams, each side guardrail comprises a first guardrail and a second guardrail, and the bottoms of the first guardrail and the second guardrail on two sides are respectively fixedly connected with the first side beam and the second side beam through connecting pieces.

In one possible implementation manner, two opposite side surfaces of the two first side beams are provided with at least one strip-shaped clamping groove along the length direction;

two opposite side surfaces of the two second side beams are provided with at least one strip-shaped clamping groove along the length direction;

the bottoms of the first guardrail and the second guardrail on the two sides are respectively and fixedly connected with the two opposite side surfaces of the first side beam and the second side beam through connecting pieces.

In one possible implementation manner, the first guardrail comprises a plurality of first upright posts arranged at intervals, at least one first middle railing, and first handrails fixedly connected with the tops of the plurality of first upright posts;

the second guardrail comprises a plurality of second upright posts arranged at intervals, at least one second middle railing and second handrails fixedly connected with the tops of the second upright posts;

the first middle rail is positioned between the first side beam and the first handrail and is fixedly connected with the first upright posts;

the second middle handrail is positioned between the second side beam and the second handrail and is fixedly connected with the second upright posts;

the bottoms of the first upright post and the second upright post are respectively and fixedly connected with the two opposite side surfaces of the first side beam and the second side beam through connecting pieces.

In one possible implementation, the pedal has a reinforcement rib;

the reinforcing ribs comprise first reinforcing ribs positioned at two sides of the pedal and/or second reinforcing ribs positioned in the middle of the bottom surface of the pedal;

the first reinforcing rib is provided with a second accommodating cavity for accommodating the first reinforcing piece;

the second reinforcing rib has a second receiving cavity for receiving the second reinforcing member.

In one possible implementation manner, the first reinforcing rib comprises a first connecting part which is perpendicular to the pedal and extends downwards, a second connecting part which extends horizontally towards the other side of the pedal along the end part of the first connecting part, and a third connecting part which extends upwards along the end part of the second connecting part;

the second accommodating cavity is an accommodating space formed by the first connecting part, the second connecting part and the third connecting part; and/or the presence of a gas in the gas,

the second reinforcing rib and the bottom surface of the pedal form a closed second accommodating cavity with a preset shape.

In one possible implementation mode, both sides of the pedal are fixedly connected with the connecting piece through the fixing plates;

the fixing plate comprises a first fixing plate and a second fixing plate which is perpendicular to the first fixing plate;

the first fixing plate is fixedly connected with the pedal;

the second fixing plate is fixedly connected with the connecting piece.

In one possible implementation mode, the pedal is provided with at least one water leakage hole; and/or the presence of a gas in the gas,

at least one convex strip for skid resistance is convexly arranged on the upper surface of the pedal.

In one possible implementation, the ladder climbing device further comprises two adjusting supports;

the adjusting support is provided with a plurality of connecting holes which are arranged at intervals and used for adjusting the connecting position;

the adjusting support is fixedly connected with the first upright post through at least one connecting hole.

In one possible implementation, the side beams and the pedals are made of aluminum alloy materials.

In a second aspect, an embodiment of the present application further provides a tower, including a tower body and the ladder climbing device of the first aspect;

the outer wall of the tower barrel body is provided with a connecting seat;

the side beam close to the tower barrel body is fixedly connected with the connecting seat.

In a third aspect, an embodiment of the present application further provides a wind turbine generator system, including the tower of the second aspect.

The technical scheme provided by the embodiment of the application can at least realize the following beneficial technical effects:

the utility model provides a long banding draw-in groove of at least one is seted up along length direction to two first side roof beam looks subtend sides of cat ladder device, all be equipped with a plurality of connecting pieces in every draw-in groove, the connector is located the inner space of draw-in groove, the connecting rod stretches out the draw-in groove, the connecting rod has the screw thread section that is used for being connected with the nut, thereby the footboard can be through connecting piece and nut and curb girder fixed connection, mode fixed connection through connecting rod and nut, the installation shaping work load is little, and convenient for operation does not need the welding, and the installation cost is reduced. Simultaneously, the cat ladder device of this application embodiment is fixed through the mode of connecting rod and nut, is detachably to be connected, when local part damages, can dismantle the change to local part, easy maintenance just practices thrift cost of maintenance. Moreover, the connecting piece of this application embodiment can slide along the draw-in groove, and the upper and lower distance position and the quantity of footboard can be adjusted along the direction flexibility of draw-in groove, provides the convenience of installation and construction, can be according to the structure of actual condition adjustment cat ladder device, and the commonality is strong.

All adopt connecting piece (like fixing bolt) and nut fixed connection between each part of this application embodiment, the fixed trompil that need not be on the curb girder of connecting piece, the draw-in groove that utilizes the setting of curb girder self just connects with setting up a plurality of connecting pieces in the draw-in groove, can not produce quality and outward appearance problem because of the welding, can realize perfect connection through self structure, and can be according to the position that the part position needs nimble adjusting connection spare, also be convenient for realize mass production when realizing the commonality of cat ladder device structure.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic front view of a ladder climbing device according to an embodiment of the present disclosure;

fig. 2 is a right-side structural schematic view of a ladder climbing device provided in the embodiment of fig. 1;

FIG. 3 is a schematic structural diagram of a connecting member of a ladder climbing device according to an embodiment of the present disclosure;

fig. 4 is a front view schematically illustrating a side beam of a ladder climbing device according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a right side view of a side beam of the ladder stand apparatus provided in the embodiment of FIG. 4;

FIG. 6 is a schematic right-side view of a step plate of a ladder climbing device according to an embodiment of the present disclosure;

FIG. 7 is a schematic top view of the steps of the ladder climbing device of FIG. 6;

fig. 8 is a schematic structural view of a fixing plate of a ladder climbing device according to an embodiment of the present disclosure;

fig. 9 is a schematic structural view of a fixing plate of another ladder climbing device provided by an embodiment of the application.

Reference numerals:

100-side beam, 101-first side beam, 102-second side beam, 103-card slot, 1031-inner space, 1032-opening;

200-connecting piece, 201-connecting head, 202-connecting rod;

300-pedal, 301-first reinforcing rib, 3011-first connecting part, 3012-second connecting part, 3013-third connecting part, 302-second reinforcing rib, 303-water leakage hole and 304-convex strip;

400-working platform, 401-guard plate;

501-a first guardrail, 5011-a first upright post, 5012-a first middle railing, 5013-a first handrail, 502-a second guardrail, 5021-a second upright post, 5022-a second middle railing and 5023-a second handrail;

600-fixed plate, 601-first fixed plate, 602-second fixed plate;

700-adjusting support, 701-connecting hole, 702-base and 703-connecting rod.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.

The embodiment of the application provides a cat ladder device for with tower section of thick bamboo body fixed connection, combine fig. 1 and 2 to show, this cat ladder device includes: two parallel arranged side beams 100, a plurality of connecting members 200 and a plurality of spaced pedals 300.

Each side beam 100 includes a first inclined side beam 101, and two opposite side surfaces of the two first side beams 101 are provided with at least one elongated slot 103 along the length direction.

Referring to fig. 3, each connector 200 includes a connector 201 and a connecting rod 202 connected to the connector 201, the connector 201 is located in the inner space 1031 of the slot 103, the connector 200 can slide along the slot 103, the connecting rod 202 extends out of the slot 103, and the diameter of the connector 201 is larger than the width of the opening 1032 of the slot 103 to prevent the connector 200 from falling out; the connecting rod 202 has a threaded section for connection with a nut.

Both sides of each pedal 300 are fixedly connected with the two opposite side surfaces of the two first side beams 101 through the connecting members 200 and the nuts.

The pedal 300 of the embodiment of the application can be fixedly connected with the side beam 100 through the connecting piece 200 and the nut, and is fixedly connected with the side beam 100 through the connecting piece 200 and the nut, so that the installation forming workload is small, the operation is convenient, welding is not needed, and the installation cost is reduced. Meanwhile, the ladder stand device of the embodiment of the application is fixed with the side beam 100 through the connecting piece 200 and the nut and is detachably connected, when a local part is damaged, the local part can be detached and replaced, the maintenance is convenient, and the maintenance cost is saved. Moreover, the connecting piece 200 of the embodiment of the application can slide along the clamping groove 103, the up-and-down distance position and the number of the pedals 300 can be flexibly adjusted along the direction of the clamping groove 103, convenience in installation and construction is provided, the structure of the ladder climbing device can be adjusted according to actual conditions, and the universality is high.

All adopt connecting piece 200 (like fixing bolt) and nut fixed connection between each part of this application embodiment, connecting piece 200's fixed need not extra trompil on curb girder 100, the draw-in groove 103 that utilizes the setting of curb girder 100 self just connects with setting up a plurality of connecting pieces 200 in draw-in groove 103, can not produce quality and outward appearance problem because of the welding, can realize perfect connection through self structure, and can be according to the position of part position needs nimble adjusting connecting piece 200, be convenient for realize the mass production when realizing the commonality of cat ladder device structure.

Alternatively, the connector 200 may be a fixing bolt or other threaded member. The connecting piece 200 can flexibly move in the clamping groove 103, so that the ladder climbing device has strong structural universality. The fixing connection mode through the connecting member 200 in the embodiment of the present application is to realize the fixing connection through the connecting member 200 and a nut.

In some embodiments, each side sill 100 further includes: horizontal second side beams 102, one end of each second side beam 102 is correspondingly and fixedly connected with one end of one first side beam 101; two opposite side surfaces of the two second side beams 102 are provided with at least one strip-shaped clamping groove 103 along the length direction.

The ladder climbing device further comprises a working platform 400, and both sides of the working platform 400 are fixedly connected with the two opposite side surfaces of the two second side beams 102 through connecting pieces 200 and nuts.

In some embodiments, the working platform 400 is provided with guard plates 401 on both sides, and the guard plates 401 are fixedly connected with the side beams 100 through the connecting members 200 and the nuts. The guard plate 401 can protect workers during construction as a skirting edge.

As shown in fig. 1, as an example, both ends of the first side member 101 and the second side member 102 are connected to each other by a connecting plate, the two connecting plates may be detachably and fixedly connected by bolts and nuts, and the first side member 101 and the second side member 102 may be fixedly connected by the connecting plates. In practical application, a plurality of connecting holes may be formed in the two connecting plates, the angle at which the first side beam 101 and the second side beam 102 are fixedly connected may be adjusted according to actual needs, and the corresponding connecting holes are selected according to the required angle for fixed connection.

Referring to fig. 4 and 5, the catching groove 103 is a through groove extending to both ends of the side member 100, and the connecting member 200 is fitted into the catching groove 103 from both ends of the side member 100 after the connecting member 200 is fitted into the catching groove 103. The side member 100 may be provided with an anti-disengagement member at an end thereof, and the anti-disengagement member may be used to be fixedly connected to other members, and the connecting plate in the embodiment shown in fig. 1 may be used to fixedly connect the first side member 101 and the second side member 102 and also serve as an anti-disengagement member. Optionally, the two connecting plates are fixed to the side beam 100 and the two connecting plates are fixed to the side beam 100 through the clamping grooves 103 and the connecting pieces 200, mounting holes are formed in the connecting plates according to actual needs, the connecting pieces 200 are fixed to nuts, welding is avoided, and product extensibility is improved.

In some embodiments, the ladder climbing device further comprises: the guardrail on both sides, the guardrail on both sides respectively with two curb girder fixed connection, every side guardrail includes first guardrail 501 and second guardrail 502, the first guardrail 501 of both sides and second guardrail 502 bottom pass through connecting piece 200 respectively with first curb girder 101 and second curb girder 102 fixed connection. The guardrail can be as the handrail of footboard 300 when operating personnel carries out the construction of tower section of thick bamboo body, and the footboard 300 is gone up and down to operating personnel of being convenient for, protection personnel's safety.

In some embodiments, two opposite side surfaces of the two first side beams 101 are provided with at least one elongated slot 103 along the length direction; two opposite side surfaces of the two second side beams 102 are provided with at least one strip-shaped clamping groove 103 along the length direction; the bottoms of the first guardrail 501 and the second guardrail 502 on both sides are fixedly connected with the two opposite side surfaces of the first side beam 101 and the second side beam 102 respectively through the connecting piece 200. Alternatively, the side beams 100 adjacent the tower body may be fixedly coupled to the tower body by the coupling members 200. The bottoms of the first guardrail 501 and the second guardrail 502 on both sides may also be fixedly connected by both sides of the first side member 101 and the second side member 102 facing each other.

In some embodiments, referring to fig. 1, the first fence 501 comprises a plurality of first posts 5011 spaced apart, at least one first intermediate rail 5012, and first hand-rails 5013 fixedly connected to the tops of the plurality of first posts 5011; the second fence 502 comprises a plurality of second columns 5021 arranged at intervals, at least one second middle rail 5022, and second handrails 5023 fixedly connected with the tops of the plurality of second columns 5021; the first middle rail 5012 is positioned between the first side rail 101 and the first handrail 5013 and is fixedly connected with the first uprights 5011; second middle rail 5022 is positioned between second side rail 102 and second handrail 5023 and is fixedly connected to second plurality of columns 5021; the bottoms of the first post 5011 and the second post 5021 are fixedly connected to the sides of the first side beam 101 and the second side beam 102 by connectors 200, respectively.

Optionally, because the heights of the first holding rod 5013 and the second holding rod 5023 of the guardrail required by each national standard in international projects are inconsistent with the distance between the pedals 300, the connector 200 in the embodiment of the application can move in the clamping groove 103, so that the positions of the guardrail and the pedals 300 of the ladder stand can be adjusted according to actual conditions, the positions can be adjusted in real time on the installation site according to actual conditions, and the applicability is wide.

As an example, as shown in fig. 4 and fig. 5, two elongated slots 103 are provided on both sides of the first side beam 101 and the second side beam 102 along the length direction, that is, two pairs of slots 103 are provided on both sides of the first side beam 101 and the second side beam 102, the two slots 103 of each pair of slots 103 are arranged oppositely, and each pair of slots 103 is arranged at an interval and close to both sides of the side beam 101 in the width direction. In practical application, as shown in fig. 1, two pairs of mounting holes are formed at the bottoms of the first upright 5011 and the second upright 5021, and the first upright 5011 and the second upright 5021 are respectively fixed to the two slots 103 of the side beam 100 through the two pairs of mounting holes. The width of the internal space 1031 of the card slot 103 is greater than the width of the opening 1032, the shape of the internal space 1031 of the card slot 103 matches with that of the connector 201, and the connector 201 is movable in the internal space 1031.

Optionally, the profile structure used for the side beam 101 may be a profile of a hollow cavity, the card slots 103 on the two side surfaces of the first side beam 101 and the second side beam 102 may be the same or different, the number of the card slots 103 on the single side surface is not limited to two, and may be three or more, which is determined according to the structural requirement. Referring to fig. 5, at least one reinforcing plate may be disposed between two of the pockets 103 of each pair of pockets 103 and between both side surfaces of the side member 101 to reinforce the strength of the side member 101.

Optionally, the thickness of the side beam 101 is between 20mm (millimeter) and 200mm (millimeter), the width is between 100mm and 400mm, the thickness of the reinforcing plate in the hollow cavity is between 0.8mm and 10mm, the thickness of the upper surface and the lower surface of the side beam 101 is between 0.8 and 10, and the thickness of the upper surface and the lower surface of the side beam 101 and the thickness of the reinforcing plate can be equal or different and are determined according to the stress condition of the platform. The hollow cavity can be square, rectangular, triangular, trapezoidal, rhombic, polygonal, honeycombed, delta-shaped, concave and the like, and the cavity of the section can be single-layer or multi-layer and can be selected according to the stress condition and the actual requirement.

In some embodiments, referring to fig. 6, the pedal 300 has reinforcement ribs; the reinforcing ribs comprise first reinforcing ribs 301 positioned at two sides of the pedal 300 and/or second reinforcing ribs 302 positioned at the middle part of the bottom surface of the pedal 300; the first reinforcing bead 301 has a second accommodating chamber for accommodating the first reinforcing member; the second reinforcing bead 302 has a second receiving cavity for receiving the second reinforcing member. Optionally, the first reinforcing rib 301 and the second reinforcing rib 302 arranged on the pedal 300 can be provided with a high-strength carbon steel reinforcing part, so that the strength and rigidity of the pedal 300 can be invisibly enhanced, and when heavy load bearing is required, the reinforcing parts can be inserted into the first reinforcing rib 301 and the second reinforcing rib 302, so that the adaptability of the ladder climbing device is greatly improved.

In some embodiments, referring to fig. 6, the first reinforcing ribs 301 include a first connecting portion 3011 extending vertically to the step panel 300 and downward, a second connecting portion 3012 extending horizontally along an end of the first connecting portion 3011 toward the other side of the step panel 300, and a third connecting portion 3013 extending upward along an end of the second connecting portion 3012; the second receiving cavity is a receiving space formed by the first connection portion 3011, the second connection portion 3012 and the third connection portion 3013. Alternatively, the first reinforcing beads 301 may be integrally formed with the step panel 300. Alternatively, the first reinforcing rib 301 may have a closed structure, which is the same as the second reinforcing rib 302. And/or, in some embodiments, the second reinforcing rib 302 forms a closed second receiving cavity of a predetermined shape with the bottom surface of the step panel 300. The second accommodating cavity is a hollow cavity, and the preset shape can be square, rectangular, triangular, polygonal, trapezoidal, rhombic, honeycomb and the like. In practical application, the number of the second reinforcing ribs 302 may be one, two or more, and the second reinforcing ribs can be expanded on the premise of meeting mechanical properties, functions and manufacturability, and the number is selected according to actual stress and actual required strength.

In some embodiments, referring to fig. 8 and 9, both sides of the pedal 300 are fixedly connected with the connecting member 200 by the fixing plate 600; the fixing plate 600 includes a first fixing plate 601 and a second fixing plate 602 disposed perpendicular to the first fixing plate 601; the first fixing plate 601 is fixedly connected with the pedal 300; the second fixing plate 602 is fixedly connected to the connecting member 200.

Optionally, the pedal 300 is fixed to the side beam 100 by using a transition connection manner of the fixing plate 600, so that the strength of the side beam 100 is prevented from being weakened by the opening on the side beam 100, and meanwhile, the fixing plate 600 can be made of different materials, and the side beam 100 can be reinforced by using a material with higher strength when a heavy load-bearing ladder climbing ladder device is designed.

Referring to fig. 8, as an example, the first fixing plate 601 is fixed to both ends of the second fixing plate 602, and the whole structure may be integrally formed and have an L-shaped cross section. Two mounting holes may be respectively formed in the first fixing plate 601 and the second fixing plate 602, and the first fixing plate 601 and the bottom surface of the pedal 300 may be fixedly connected by bolts and nuts. In conjunction with the embodiment shown in fig. 6, the first fixing plate 601 is fixedly connected to the bottom surface of the second connection portion 3012. The second fixing plate 602 may be fixedly connected to two adjacent connectors 200 in the card slot 103. Of course, the number of the mounting holes on the first fixing plate 601 and the second fixing plate 602 can be set according to actual needs.

Referring to fig. 9, as an example, the end portion of the first fixing plate 601 is fixed to the middle portion of the second fixing plate 602, and the whole structure may be integrally formed and have a T-shaped cross section. The first fixing plate 601 is provided with a mounting hole, which may be the same as the connection position and connection manner of the embodiment shown in fig. 8. The lower portion of the second fixing plate 602 is provided with a mounting hole for fixedly connecting with the connecting member 200.

In some embodiments, referring to fig. 7, the pedal 300 is provided with at least one water leakage hole 303; and/or, the upper surface of the pedal 300 is convexly provided with at least one convex strip 304 for preventing slipping. Alternatively, the anti-slip ribs 304 may be arranged in parallel to form anti-slip ribs, and the water leakage holes 303 may be arranged in rows between two adjacent anti-slip ribs 304.

The footboard 300 of this application embodiment design has skid-proof sand grip 304, and the hole that leaks in addition has reduced the risk that the personnel on sleet day entry cat ladder device slips when standing for the entry cat ladder that first side rail 101 and footboard 300 are constituteed more accords with the safety standard.

In some embodiments, as shown in conjunction with figures 1 and 2, the ladder climbing device further comprises two adjustment brackets 700; the adjusting support 700 has a plurality of connecting holes 701 arranged at intervals for adjusting the connecting position; the adjusting mount 700 is fixedly connected to the first post 5011 via at least one connecting hole 701.

Referring to fig. 2, as an example, the adjusting bracket 700 includes a base 702, a connecting rod 703 fixed on the base 702, a plurality of connecting holes 701 are arranged on the connecting rod 703 at intervals, the first upright 5011 and the second upright 5021 can be correspondingly inserted into a cavity in the connecting rod 703, and the uprights (i.e., the first upright 5011 and the second upright 5021) and the connecting rod 703 are fixedly connected by bolts and nuts according to actual height requirements. Meanwhile, the pillar is fixedly connected with the side sill 100 through the connecting member 200 and the nut and/or the connecting rod 703 is fixedly connected through the connecting member 200 and the nut.

The inventor of the application researches and discovers that the entrance ladder stand (namely the part formed by the first side beam 101 and the pedal 300) of the ladder stand device of the wind generating set is mostly made of carbon steel sectional materials, the structural weight is large, and field installation personnel are difficult, hard and inconvenient to install and have high installation labor cost. Meanwhile, the entrance ladder is prevented from being corroded by hot dip galvanizing, certain influence is caused on the environment, the corrosion prevention effect is not ideal, particularly, the ladder of the offshore unit is corroded after the wind generating set runs for a period of time due to construction problems, the expected effect cannot be achieved, the ladder needs to be repaired, and the cost of the offshore repairing operation is high.

The inventor of the application further considers that if the embodiment of the application provides a wind generating set aluminum alloy section entry cat ladder, just need not welding process, and the handling capacity is few moreover, light in weight, and can weight reduction about 60% than conventional carbon steel cat ladder, cost greatly reduced also has certain economic nature, is worth promoting.

In view of the above, in some embodiments, the side sill 100 and the pedal 300 are both made of an aluminum alloy material.

On the basis of satisfying the entry cat ladder function of cat ladder device, will enter the mouth cat ladder platform replacement and get into aluminium alloy ex-trusions entry cat ladder to can realize following technological effect:

(1) the cost is reduced: the entrance ladder stand is made of aluminum alloy sections, welding is not needed, the processing amount is small, the weight is light, the entrance ladder stand is about 60% lighter than that of a conventional carbon steel entrance ladder stand, and the cost is greatly reduced.

(2) The installation efficiency is improved: because the density of the aluminum alloy material is only 1/3 of the density of the carbon steel, the entrance ladder stand made of the aluminum alloy section instead of the carbon steel has light weight, easy installation and high installation efficiency.

(3) The performance and the quality of entry cat ladder improve: the conventional carbon steel inlet ladder stand is formed by welding a flat plate and a grid plate or connecting the flat plate and the grid plate into a whole through bolts, and deformation easily occurs in welding. Moreover, the anticorrosive hot galvanizing of the entrance ladder is not only environment-friendly, but also the galvanizing quality is difficult to guarantee, the quality defects such as flowering and blackening often occur, the sagging and zinc distillation phenomena are also easy to occur, operators are easy to scratch without grinding, and the appearance quality is influenced after grinding. Therefore, the entrance ladder stand is made of aluminum alloy materials, the connecting piece 200 is connected with the nut, the function of the entrance ladder stand can be met, and the performance and the quality of the entrance ladder stand are improved.

(4) The standardization is realized, the generalization degree is high: the entry cat ladder of aluminum alloy material of this application embodiment is convenient for according to actual need, the structure of adjustment entry cat ladder to be convenient for realize standardizedly, the universalization degree is high.

(5) The corrosion resistance is good: the entrance ladder stand of the aluminum alloy material provided by the embodiment of the application has good corrosion resistance, and can realize a good corrosion resistance effect through a natural oxidation film formed by the entrance ladder stand even if surface oxidation treatment is not performed, so that the entrance ladder stand is suitable for being used in various severe weather environments.

Simultaneously, other structures of cat ladder device of this application embodiment, like work platform 400 and guardrail etc. all can choose the section bar of aluminium alloy material for use according to actual conditions, have the same technological effect with the aluminium alloy material's of above-mentioned entry cat ladder section bar.

Based on the same inventive concept, the embodiment of the application also provides a tower drum, which comprises a tower drum body and the ladder climbing device; the outer wall of the tower barrel body is provided with a connecting seat; the side beam 100 close to the tower body is fixedly connected with the connecting seat. Optionally, the first side beam 101 and/or the second side beam 102 near the tower body may be fixedly connected with the connecting base through the connecting member 200.

Based on the same inventive concept, the embodiment of the application also provides a wind generating set, which comprises the tower barrel of the embodiment of the application.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

(1) this application embodiment footboard and work platform all can be through connecting piece and curb girder fixed connection, through the mode fixed connection of connecting rod and nut, and the installation shaping work load is little, and convenient operation does not need the welding, has reduced installation cost.

(2) The cat ladder device of this application embodiment is fixed through the mode of connecting piece and nut, is detachably to be connected, when local part damages, can dismantle the change to local part, easy maintenance just practices thrift cost of maintenance.

(3) The connecting piece of this application embodiment can follow the draw-in groove and slide, and the upper and lower distance position of footboard can be adjusted along the direction flexibility of draw-in groove, and the quantity of footboard also can be adjusted, provides the convenience of installation and construction, can adjust the structure of cat ladder device according to the condition of reality, and the commonality is strong. In addition, the position of the guardrail of the ladder stand can be adjusted according to actual conditions, the installation of the pedal and the guardrail can be adjusted in real time according to conditions on the installation site, the requirements of the height of the handrail and the height of the pedal required by each national standard in international projects can be met, and the applicability is high.

(4) All adopt connecting piece and nut fixed connection between each part of this application embodiment, the fixed trompil that need not additionally on the curb girder of connecting piece, the draw-in groove that utilizes the setting of curb girder self sets up a plurality of connecting pieces in the draw-in groove and just connects, can not produce quality and outward appearance problem because of the welding, can realize perfect connection through self structure, and can be according to the position that the part position needs nimble adjusting connection spare, be convenient for realize mass production when realizing the commonality of cat ladder device structure.

(5) The footboard of this application embodiment has the strengthening rib, and the strengthening rib includes first strengthening rib and/or second strengthening rib, can correspond first reinforcement of installation and second reinforcement at first strengthening rib and second strengthening rib, and first reinforcement and second reinforcement adopt carbon steel material to make, choose for use according to actual atress and intensity needs, have further improved the commonality of cat ladder device.

(6) The footboard of this application embodiment and the fixed mode that adopts fixed plate transitional coupling of curb girder avoid trompil to weaken the intensity of curb girder on the curb girder, and the fixed plate can adopt different materials simultaneously, adopts the material of higher intensity to play the reinforcement effect to the curb girder when the heavy cat ladder device that bears of design.

(7) The footboard design of this application embodiment has skid-proof sand grip and the hole that leaks, has reduced the smooth risk of falling when personnel on sleet day entry cat ladder stand for the entry cat ladder more accords with safety standard.

(8) The curb girder and the footboard of this application embodiment adopt aluminum alloy material to make, have greatly reduced the cost, improved the installation effectiveness, improved the performance and the quality of entry cat ladder, realize standardization, the high and good advantage of corrosion resisting property of universalization degree. Simultaneously, work platform and guardrail of this application embodiment also can adopt aluminum alloy material to make, further realize adopting aluminum alloy material's technological effect.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (13)

1. The utility model provides a cat ladder device for with tower cylinder body fixed connection, its characterized in that includes:

the device comprises two parallel side beams (100), wherein each side beam (100) comprises an inclined first side beam (101), and two opposite side surfaces of the two first side beams (101) are provided with at least one strip-shaped clamping groove (103) along the length direction;

the connecting pieces (200) can slide along the clamping grooves (103), each connecting piece (200) comprises a connecting head (201) and a connecting rod (202) connected to the connecting head (201), the connecting heads (201) are located in the inner space (1031) of the clamping grooves (103), the connecting rods (202) extend out of the clamping grooves (103), the diameter of the connecting heads (201) is larger than the width of an opening (1032) of the clamping grooves (103), and the connecting rods (202) are provided with threaded sections;

the two sides of each pedal (300) are fixedly connected with the two opposite side surfaces of the two first side beams (101) through the connecting pieces (200).

2. A ladder climbing device according to claim 1, characterized in that each of the side beams (100) further comprises:

the horizontal second side beams (102), one end of each second side beam (102) is fixedly connected with one end of one first side beam (101); two opposite side surfaces of the two second side beams (102) are provided with at least one strip-shaped clamping groove (103) along the length direction;

the ladder climbing device further comprises:

and two sides of the working platform (400) are fixedly connected with two opposite side surfaces of the two second side beams (102) through the connecting piece (200).

3. The ladder climbing device according to claim 2, further comprising:

the two side guardrails are respectively fixedly connected with the two side beams, each side guardrail comprises a first guardrail (501) and a second guardrail (502), and the bottoms of the first guardrail (501) and the second guardrail (502) on the two sides are respectively fixedly connected with the first side beam (101) and the second side beam (102) through the connecting piece (200).

4. A ladder climbing device according to claim 3, characterised in that two opposite side surfaces of the first side beams (101) are provided with at least one elongated slot (103) along the length direction;

two opposite side surfaces of the two second side beams (102) are provided with at least one strip-shaped clamping groove (103) along the length direction;

the bottoms of the first guardrail (501) and the second guardrail (502) on two sides are respectively fixedly connected with two opposite side surfaces of the first side beam (101) and the second side beam (102) through the connecting piece (200).

5. A ladder climbing device according to claim 4, characterised in that the first railing (501) comprises a number of first uprights (5011) arranged at a distance, at least one first intermediate railing (5012), and first hand-rails (5013) fixedly connected to the tops of the number of first uprights (5011);

the second guardrail (502) comprises a plurality of second upright columns (5021) arranged at intervals, at least one second middle railing (5022) and second hand-rest bars (5023) fixedly connected with the tops of the second upright columns (5021);

the first middle rail (5012) is positioned between the first side beam (101) and the first handrail (5013) and is fixedly connected with the first upright posts (5011);

the second middle rail (5022) is positioned between the second side beam (102) and the second handrail (5023) and is fixedly connected with the second columns (5021);

the bottoms of the first upright post (5011) and the second upright post (5021) are fixedly connected with two opposite side faces of the first side beam (101) and the second side beam (102) through the connecting piece (200).

6. A ladder climbing device according to claim 1, characterised in that the step (300) has reinforcement ribs;

the reinforcing ribs comprise first reinforcing ribs (301) positioned at two sides of the pedal (300) and/or second reinforcing ribs (302) positioned in the middle of the bottom surface of the pedal (300);

the first reinforcing rib (301) is provided with a second accommodating cavity for accommodating a first reinforcing piece;

the second reinforcing bead (302) has a second receiving cavity for receiving a second reinforcing member.

7. The ladder climbing device according to claim 6, wherein the first reinforcement rib (301) includes a first connection portion (3011) extending downward perpendicular to the step plate (300), a second connection portion (3012) extending horizontally toward the other side of the step plate (300) along an end of the first connection portion (3011), and a third connection portion (3013) extending upward along an end of the second connection portion (3012);

the second accommodating cavity is an accommodating space formed by the first connecting part (3011), the second connecting part (3012) and the third connecting part (3013); and/or the presence of a gas in the gas,

the second reinforcing rib (302) and the bottom surface of the pedal (300) form a closed second accommodating cavity with a preset shape.

8. A ladder climbing device according to claim 1, characterised in that both sides of the step (300) are fixedly connected to the connecting piece (200) by means of fixing plates (600);

the fixing plate (600) comprises a first fixing plate (601) and a second fixing plate (602) which is perpendicular to the first fixing plate (601);

the first fixing plate (601) is fixedly connected with the pedal (300);

the second fixing plate (602) is fixedly connected with the connecting piece (200).

9. A ladder climbing device according to claim 1, characterised in that the step (300) is provided with at least one water leakage hole (303); and/or the presence of a gas in the gas,

the upper surface of the pedal (300) is convexly provided with at least one convex strip (304) for preventing skidding.

10. A ladder climbing device according to claim 5, characterised in that it further comprises two adjustment abutments (700);

the adjusting support (700) is provided with a plurality of connecting holes (701) which are arranged at intervals and used for adjusting connecting positions;

the adjusting support (700) is fixedly connected with the first upright post (5011) through at least one connecting hole (701).

11. A ladder climbing device according to claim 1, characterised in that the side members (100) and the step (300) are made of an aluminium alloy material.

12. A tower comprising a tower body and ladder climbing means as claimed in any one of claims 1-11;

the outer wall of the tower barrel body is provided with a connecting seat;

the side beam (100) close to the tower barrel body is fixedly connected with the connecting seat.

13. A wind power plant comprising a tower as claimed in claim 12.

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