Portable ladder stand for wind power overhaul

Abstract

The utility model provides a portable wind power overhaul ladder stand which comprises a main ladder, a plurality of auxiliary ladders, a plurality of groups of connecting pieces and a suspension piece, supporting legs are vertically arranged on the main ladder, the first auxiliary ladder is rotatably arranged at the bottom of the main ladder, the other auxiliary ladders are rotatably connected end to end, the number of the connecting pieces is multiple, and the suspension piece is arranged on the main ladder. The hanging pieces are respectively and fixedly arranged between the main ladder and the auxiliary ladders and between two adjacent auxiliary ladders, and the hanging pieces are fixedly arranged at the top of the main ladder and are clamped on a transverse column of the wind power equipment. According to the portable wind power overhaul crawling ladder, the main ladder and the auxiliary ladder are arranged in a matched mode, it is ensured that the crawling ladder can be folded and is convenient to transport, it is ensured that the main ladder and the auxiliary ladder can be connected together after being unfolded through the connecting piece, shaking is avoided, safety is improved, it is ensured that the crawling ladder can be hung on wind power equipment through the hanging piece, and the crawling ladder is convenient to use. The crawling ladder is prevented from being separated from the wind power equipment, and the transverse column of the wind power equipment can be prevented from shaking in the hanging piece through the cooperative arrangement of the bent hook and the top block.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power maintenance, in particular to a portable wind power maintenance ladder. Background Art

[0002] Wind power generation is a clean energy technology that converts wind energy into electricity. The principle of wind power generation is that the rotating windmill blades drive a generator to generate electricity. A wind turbine generator system consists of a rotor, a generator, a wind turbine elevator, and a tower. The rotor converts wind energy into mechanical energy, and the generator converts mechanical energy into electrical energy. Because wind turbines are generally tall and require manual access for maintenance, the wind turbine elevator is a crucial component of wind turbine equipment.

[0003] However, in order to prevent others from climbing up the wind turbine equipment without permission, wind turbine elevators are generally not installed within a certain distance from the ground. Therefore, maintenance personnel are required to bring their own ladders of a certain height to connect to the wind turbine elevator so that maintenance personnel can inspect the wind turbine equipment. However, in order to facilitate folding, existing ladders are generally connected by a rotating shaft, and in order to facilitate hanging the ladder on the wind turbine elevator, a hook is provided on the ladder, and the hook is hung on the wind turbine elevator. However, wind turbine equipment is generally installed in wide areas with high wind speeds, and the existing ladders will swing back and forth due to problems with the movement of the rotating shaft and the hook when climbing, and may even fall off the wind turbine equipment, increasing the risk for maintenance personnel. Utility Model Content

[0004] The purpose of the utility model is to provide a portable wind power maintenance ladder to solve the problem that when the existing ladder is hung on the wind power equipment, the risk of people climbing is relatively high.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A portable wind power maintenance ladder, comprising:

[0007] A main ladder, on which legs are vertically arranged; there are multiple auxiliary ladders, the first of which is rotatably arranged at the bottom of the main ladder, and the other auxiliary ladders are rotatably connected between the head and the tail; there are multiple groups of connecting parts, which are respectively fixedly arranged between the main ladder and the auxiliary ladders, and between two adjacent auxiliary ladders; a hanging part, which is fixedly arranged at the top of the main ladder and is clamped on the horizontal column of the wind power equipment.

[0008] Furthermore, the hanging member includes a base fixedly arranged on the top of the main ladder, a hook rotatably arranged on the base, and a handle for driving the hook to rotate. The cross column is located in the base, and the hook locks the cross column in the base.

[0009] Furthermore, a placement slot is provided on the base, the transverse column is located in the placement slot, and a through slot perpendicular to the placement slot is also provided on the base, and the curved hook swings in the through slot.

[0010] Furthermore, a torsion spring is inserted into the dial handle, one end of the torsion spring is fixed to the dial handle, and the other end is fixed to the base.

[0011] Furthermore, a slide groove is provided at the bottom of the placement groove, a top block is slidably provided in the slide groove, a spring is provided between the top block and the slide groove, and the top block is located at the bottom of the horizontal column.

[0012] Furthermore, a traction rope is fixedly provided on the pull handle, a cross bar is bent on the main ladder, the base is fixed on the cross bar, and a reinforcing rib is provided between the cross bar and the base.

[0013] Furthermore, the connecting member includes a connecting plate fixedly arranged on the main ladder and a clamping sleeve mounted on the side wall of the main ladder. The auxiliary ladder shaft is connected to the connecting plate, and the clamping sleeve accommodates the main ladder side wall and the auxiliary ladder side wall.

[0014] Furthermore, the clamping sleeve and the main ladder are respectively provided with through holes, and pin shafts are inserted into the through holes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The portable wind power maintenance ladder described in the present invention ensures that the ladder can be folded for easy transportation through the coordinated arrangement of the main ladder and the auxiliary ladder; ensures that the main ladder and the auxiliary ladder can be connected together after being unfolded through the arrangement of the connecting parts, thereby avoiding shaking and improving safety; ensures that the ladder can be hung on the wind power equipment through the arrangement of the hanging parts, thereby avoiding the ladder from being separated from the wind power equipment; and ensures that the horizontal column of the wind power equipment can be avoided from shaking in the hanging parts through the coordinated arrangement of the bent hook and the top block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0018] In the attached figure:

[0019] Figure 1 This is a schematic diagram of the overall structure of the portable wind turbine maintenance ladder according to an embodiment of the present utility model;

[0020] Figure 2 This is a partial schematic diagram of the connecting piece according to an embodiment of the present utility model;

[0021] Figure 3 This is an exploded schematic diagram of the connector according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the folding of the main ladder and auxiliary ladder according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the suspension member according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the suspension member according to an embodiment of the present utility model from another angle;

[0025] Figure 7 This is a schematic diagram of the exploded view of the suspension member according to an embodiment of the present utility model.

[0026] Description of reference numerals:

[0027] 1. Main ladder; 2. Outriggers; 3. Auxiliary ladder;

[0028] 4. Connecting piece; 401. Connecting plate; 402. Snap-fit sleeve; 403. Through hole; 404. Pin;

[0029] 5. Suspension member; 501. Base; 502. Hook; 503. Handle; 504. Placement slot; 505. Through slot; 506. Torsion spring; 507. Slide; 508. Top block; 509. Spring; 510. Traction rope;

[0030] 6. Cross bar; 7. Reinforcement rib. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "back" appear, they are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0033] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] This embodiment relates to a portable wind power maintenance ladder, the overall structure of which is as follows: Figure 1 and Figure 4 As shown, it includes a main ladder 1, an auxiliary ladder 3, a connecting part 4, and a hanging part 5.

[0036] Among them, the main ladder 1 is vertically provided with a support leg 2, there are multiple auxiliary ladders 3, the first auxiliary ladder 3 is rotatably set at the bottom of the main ladder 1, and the other auxiliary ladders 3 are rotatably connected between the head and the tail. There are multiple groups of connecting parts 4, which are respectively fixedly set between the main ladder 1 and the auxiliary ladder 3, and between two adjacent auxiliary ladders 3. The hanging parts 5 are fixedly set at the top of the main ladder 1 and are clamped on the horizontal column of the wind power equipment.

[0037] It is worth mentioning that existing wind power equipment is equipped with wind turbines. The horizontal column is the horizontal column at the tail of the wind turbine. The suspension part 5 can be locked on the horizontal column to prevent the ladder and the horizontal column from detaching. The main ladder 1 and the auxiliary ladder 3 can be unfolded or folded. The connecting part 4 is installed at the tail of the main ladder 1 and the top of the auxiliary ladder 3. After unfolding, the main ladder 1 and the auxiliary ladder 3 can be fixed to prevent the main ladder 1 and the auxiliary ladder 3 from swinging between the main ladder 1 and the auxiliary ladder 3, thereby improving safety. After folding, it is convenient for transportation. In order to increase the length of the ladder, other auxiliary ladders 3 can be added in sequence at the tail end of the auxiliary ladder 3. These auxiliary ladders 3 are also connected by connecting parts 4 to ensure that the auxiliary ladders 3 can also be unfolded or folded.

[0038] Based on the above overall introduction, an exemplary structure of the portable wind turbine maintenance ladder of this embodiment is as follows: Figure 2 and Figure 3 As shown, the connector 4 includes a connecting plate 401 fixed to the main ladder 1 and a snap-fit sleeve 402 sleeved on the side wall of the main ladder 1. The auxiliary ladder 3's rotating shaft is connected to the connecting plate 401. The snap-fit sleeve 402 accommodates the side walls of the main ladder 1 and the auxiliary ladder 3. Through holes 403 are respectively formed in the snap-fit sleeve 402 and the main ladder 1, and a pin 404 is inserted into the through hole 403.

[0039] It should be noted that the connecting plate 401 can be installed on the tail side of the main ladder 1 by welding or screws, and the auxiliary ladder 3 can be rotated on the connecting plate 401, thereby realizing the expansion or folding of the main ladder 1 and the auxiliary ladder 3. The snap-fit sleeve 402 is located on the auxiliary ladder 3 when in the folded state, and in the expanded state, it is necessary to push the snap-fit sleeve 402 upward into the main ladder 1. This arrangement ensures that the side walls of the auxiliary ladder 3 and the main ladder 1 are all restrained in the snap-fit sleeve 402, thereby realizing the fixation of the main ladder 1 and the auxiliary ladder 3. In order to fix the snap-fit sleeve 402 in this position, it is necessary to open a through hole 403 on the snap-fit sleeve 402 and the main ladder 1, and insert the pin shaft 404 into the through hole 403, which can ensure that the snap-fit sleeve 402 is always restrained on the main ladder 1 and the auxiliary ladder 3, and avoid the snap-fit sleeve 402 sliding down during climbing, causing the main ladder 1 and the auxiliary ladder 3 to swing.

[0040] As a preferred embodiment, Figure 5 As shown, the suspension member 5 of this embodiment includes a base 501 fixedly set on the top of the main ladder 1, a hook 502 rotatably set on the base 501, and a handle 503 for driving the hook 502 to rotate. The cross column is located in the base 501, and the hook 502 locks the cross column in the base 501.

[0041] It should be noted that the base 501 can be installed on the top of the main ladder 1 by screws, and the hook 502 rotates on the base 501. When the cross column is located in the base 501, the hook 502 can be rotated to the top of the cross column. This arrangement ensures that the cross column is fixed in the base 501 and avoids detachment from the base 501, thereby improving safety. The handle 503 can control the rotation of the hook 502, thereby facilitating operation by personnel.

[0042] As a preferred embodiment, Figure 5 As shown, a traction rope 510 is fixedly provided on the handle 503 of this embodiment, a crossbar 6 is bent on the main ladder 1, the base 501 is fixed on the crossbar 6, and a reinforcing rib 7 is provided between the crossbar 6 and the base 501.

[0043] Specifically, the traction rope 510 is installed on the dial handle 503, and the dial handle 503 is L-shaped. The bottom end of the hook 502 is fixed to one of the rods of the dial handle 503, and the traction rope 510 is fixed to the other rod. The stem with the traction rope 510 can swing, thereby driving the hook 502 to swing. Such a setting is convenient for controlling the swing of the hook 502. The traction rope 510 can ensure that when the hanger 5 rises to the cross column, it can still control the swing of the hook 502, thereby facilitating the locking and unlocking of the hanger 5 and improving convenience. In order to improve the strength of the base 501 on the main ladder 1, the cross bar 6 can be integrally formed on the side wall of the main ladder 1. The setting of the cross bar 6 ensures that the hanger 5 and the main ladder 1 are in a vertical state, which is convenient for locking with the cross column. The reinforcing rib 7 can be welded to the cross column, and the base 501 and the reinforcing rib 7 are in contact. When the screws are tightened, the base 501 can be prevented from shaking on the cross bar 6.

[0044] As a preferred Figure 6 As shown, in this embodiment, a placement slot 504 is formed on the base 501, and the crossbar is located in the placement slot 504. The base 501 also has a through slot 505 perpendicular to the placement slot 504, and the hook 502 swings in the through slot 505. A torsion spring 506 is inserted into the torsion handle 503, and one end of the torsion spring 506 is fixed to the torsion handle 503, and the other end is fixed to the base 501.

[0045] Specifically, the placement slot 504 is horizontally opened on the top surface of the base 501, and the cross column can enter the placement slot 504. When the cross column contacts the bottom of the placement slot 504, the hook 502 can be rotated to the upper part of the cross column. The through slot 505 is opened on the side of the base 501. The through slot 505 is connected to the placement slot 504 to ensure that the hook 502 can be rotated into the placement slot 504 and abut against the cross column, ensuring that the cross column is restrained in the placement slot 504. One end of the torsion spring 506 is fixed on the base 501, and the other end is fixed to the pull handle 503 with a traction On the rod of the guide rope 510, the torsion spring 506 can ensure that the lever 503 controls the hook 502 to always have a force toward the placement slot 504, ensuring that after the cross bar 6 enters the placement slot 504, the hook 502 always restrains the cross column to prevent the cross column from detaching from the base 501. When the traction rope 510 drives the lever 503 to swing, the torsion spring 506 is subjected to force, driving the hook 502 to detach from the cross column. At this time, the ladder can be removed from the cross column. When the traction rope 510 is released, the hook 502 enters the placement slot 504 through the force of the torsion spring 506.

[0046] As a preferred Figure 7 As shown, in this embodiment, a chute 507 is provided at the bottom of the placement slot 504, and a top block 508 is slidably provided in the chute 507. A spring 509 is provided between the top block 508 and the chute 507, and the top block 508 is located at the bottom of the crossbar. Specifically, the top block 508 rises and falls in the chute 507. When the crossbar is located in the placement slot 504, the top block 508 abuts against the bottom of the crossbar, and the hook 502 abuts against the top of the crossbar. This arrangement can prevent the crossbar from shaking in the placement slot 504. The spring 509 is a high-pressure spring 509, with the top fixed on the top block 508 and the bottom fixed to the bottom of the chute 507, which can support the top block 508. When the crossbar and the top block 508 abut, the high-pressure spring 509 is compressed, ensuring that the crossbar is always located between the top block 508 and the hook 502.

[0047] The portable wind power maintenance ladder in this embodiment ensures that the ladder can be folded for easy transportation through the coordinated setting of the main ladder 1 and the auxiliary ladder 3. The setting of the connecting member 4 ensures that the main ladder 1 and the auxiliary ladder 3 can be connected together after being unfolded to avoid shaking and improve safety. The setting of the hanging member 5 ensures that the ladder can be hung on the wind power equipment to prevent the ladder from detaching from the wind power equipment. The coordinated setting of the bent hook 502 and the top block 508 can prevent the horizontal column of the wind power equipment from shaking in the hanging member 5.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable wind power maintenance ladder, characterized in that: include: A main ladder (1), wherein the main ladder (1) is vertically provided with supporting legs (2); Auxiliary ladders (3), there are multiple auxiliary ladders (3), the first auxiliary ladder (3) is rotatably arranged at the bottom of the main ladder (1), and the other auxiliary ladders (3) are rotatably connected between the head and the tail; Connecting members (4), which are in multiple groups and are respectively fixedly arranged between the main ladder (1) and the auxiliary ladder (3), and between two adjacent auxiliary ladders (3); The hanging member (5) is fixedly arranged on the top of the main ladder (1) and is clamped on the horizontal column of the wind power equipment.

2. The portable wind turbine maintenance ladder according to claim 1 is characterized in that: The hanging member (5) comprises a base (501) fixedly arranged at the top of the main ladder (1), a hook (502) rotatably arranged on the base (501), and a handle (503) for driving the hook (502) to rotate; a cross column is located in the base (501), and the hook (502) locks the cross column in the base (501).

3. The portable wind turbine maintenance ladder according to claim 2 is characterized in that: The base (501) is provided with a placement groove (504), the transverse column is located in the placement groove (504), and the base (501) is also provided with a through groove (505) perpendicular to the placement groove (504), and the curved hook (502) swings in the through groove (505).

4. The portable wind turbine maintenance ladder according to claim 2 is characterized in that: A torsion spring (506) is inserted into the dial handle (503), one end of the torsion spring (506) is fixed to the dial handle (503), and the other end is fixed to the base (501).

5. The portable wind turbine maintenance ladder according to claim 3 is characterized in that: A sliding groove (507) is provided at the bottom of the placement groove (504), a top block (508) is slidably provided in the sliding groove (507), a spring (509) is provided between the top block (508) and the sliding groove (507), and the top block (508) is located at the bottom of the horizontal column.

6. The portable wind turbine maintenance ladder according to claim 2, characterized in that: A traction rope (510) is fixedly provided on the handle (503), a crossbar (6) is bent on the main ladder (1), the base (501) is fixedly provided on the crossbar (6), and a reinforcing rib (7) is provided between the crossbar (6) and the base (501).

7. The portable wind turbine maintenance ladder according to any one of claims 2 to 6, characterized in that: The connecting member (4) comprises a connecting plate (401) fixedly arranged on the main ladder (1), and a clamping sleeve (402) sleeved on the side wall of the main ladder (1); the rotating shaft of the auxiliary ladder (3) is connected to the connecting plate (401); and the clamping sleeve (402) accommodates the side wall of the main ladder (1) and the side wall of the auxiliary ladder (3).

8. The portable wind turbine maintenance ladder according to claim 7, characterized in that: The clamping sleeve (402) and the main ladder (1) are respectively provided with through holes (403), and a pin shaft (404) is inserted into the through hole (403).

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