Wind power cabin door

Abstract

The utility model discloses a wind power cabin door which comprises a main frame rotationally connected with the cabin door, a first locking piece arranged between the cabin door and the main frame and a first limiting piece arranged on the main frame and used for limiting the rotating angle of the cabin door. The protection assembly is rotationally connected with the main frame and obliquely extends to the position above the cabin door. The protective device has the advantages that the first limiting piece arranged on the main frame abuts against the outer side wall of the cabin door, the effect of limiting the opening angle of the cabin door is achieved, the situation that the cabin door is rapidly blown open due to too large airflow is avoided, then injury to operators is avoided, meanwhile, the protective assembly is in an open state, and the safety of the operators is improved. The safety distance between an operator and the cabin door is guaranteed, particularly when the cabin door is rapidly closed or rapidly opened under the influence of external force, it can be guaranteed that the operator cannot be clamped or crushed by the cabin door, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power cabins, in particular to a wind power cabin door. Background Art

[0002] A wind turbine nacelle, typically the top portion of a wind turbine tower, is also known as the nacelle or nose. This section houses the wind turbine's core components, such as the generator, gearbox (if any), control system, and yaw system. The nacelle's hatch provides primary access to this enclosed space for maintenance, inspection, and equipment replacement.

[0003] Currently, wind turbine cabin doors are installed at an angle. When opened, excessive airflow can cause the inward-opening door to be blown open rapidly, potentially injuring operators and posing a safety hazard. Therefore, those skilled in the art have provided a wind turbine cabin door to address the issues raised in the background art. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a wind turbine hatch to avoid safety problems caused by the hatch being blown open rapidly due to excessive airflow.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a wind turbine cabin door, including a main frame rotatably connected to the cabin door, a first locking member arranged between the cabin door and the main frame, and a first limiting member arranged on the main frame for limiting the rotation angle of the cabin door, and a protective component rotatably connected to the main frame and extending obliquely to above the cabin door.

[0006] Preferably, the protection assembly includes a protection seat provided on the main frame, a protection rod rotatably connected to the protection seat, and a second limiting member provided between the protection seat and the protection rod for limiting the rotation of the protection rod.

[0007] Preferably, a fixed shaft is provided on the protective seat, the second limiting member passes through the fixed shaft and is rotatably connected to the fixed shaft, and the second limiting member can be driven to rotate around the fixed shaft so as to abut against the side edges of the protective seat respectively.

[0008] Preferably, the second limiting member includes a limiting body for the fixed shaft to pass through, a first protrusion extending away from the limiting body and capable of abutting against one side of the protective seat, and a second protrusion capable of abutting against the other side of the protective seat, and the end of the limiting body away from the fixed shaft is connected to the protective rod.

[0009] Preferably, the protective seat abuts against the first protrusion through a first abutting plate, and abuts against the second protrusion through a second abutting plate.

[0010] Preferably, the first limiting member includes a first connecting piece provided on the main frame and a second connecting piece abutting against the hatch, and the first connecting piece and the second connecting piece are connected by an arc-shaped member.

[0011] Preferably, the first locking member includes a first locking rod provided on the cabin door and extending to the main frame, a first locking seat provided on the main frame, and a first clamping block provided on the first locking seat for installing and fixing the first locking rod.

[0012] Preferably, the wind turbine hatch also includes a second locking member arranged between the two hatches, which includes a second locking rod arranged on one of the hatches and extending to the other hatch, a second locking seat arranged on the other hatch, and a second clamping block connecting the second locking rod and the second locking seat.

[0013] Preferably, one end of the second locking rod is connected to the first locking rod, and the other end is engaged with the second locking seat.

[0014] Preferably, the main frame is rotationally connected to the cabin door via a plurality of damping hinges.

[0015] The advantages and positive effects of the present invention are as follows: the first limiter provided on the main frame abuts against the outer wall of the hatch, thereby limiting the hatch opening angle, thus preventing the hatch from being blown open rapidly due to excessive airflow, thereby preventing harm to the operator; at the same time, the protective component is in the open state (i.e., the second position), blocking the operator from the hatch, ensuring a safe distance between the operator and the hatch, especially when the hatch is quickly closed or opened quickly due to external forces, the safe distance can ensure that the operator will not be pinched or crushed by the hatch, making it safer and more reliable. In addition, the first limiter and the damping hinge that cooperate with each other can not only limit the hatch opening angle, thus avoiding safety issues, but also reduce and protect the wear and deformation of the damping hinge, thus extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the utility model when the hatch is closed;

[0018] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model when the hatch is open;

[0019] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle;

[0020] Figure 4 yes Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 5 yes Figure 1 A partial enlarged view of point C in the middle.

[0022] The following are the descriptions of the reference numerals:

[0023] 100. Hatch door; 200. Main frame; 210. First position limiting member; 300. First locking member; 310. First locking rod; 320. First locking seat; 330. First clamping block; 400. Protective assembly; 410. Protective seat; 420. Protective rod; 430. Second position limiting member; 431. Position limiting body; 432. First protrusion; 433. Second protrusion; 440. Fixed shaft; 450. First abutment plate; 460. Second abutment plate; 500. Second locking member; 510. Second locking rod; 520. Second locking seat; 530. Second clamping block; 600. Damping hinge; 700. Handle. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] It should be noted that, in this embodiment, the hatch includes two hatches on the left and right that can correspond and close. Figure 1 As shown, the main frame and the hatch are both tilted to the left, and are at a certain angle to the ground. When the hatch is closed, the protective assembly is in a closed state (i.e., the first position), and when the hatch is opened, the protective assembly is in an open state (i.e., the second position).

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figure 1 and Figure 2 As shown, a wind turbine hatch comprises a main frame 200 rotatably connected to the hatch 100, a first locking member 300 disposed between the hatch 100 and the main frame 200, a first stopper 210 disposed on the main frame 200 for limiting the rotation angle of the hatch 100, and a protective assembly 400 rotatably connected to the main frame 200 and obliquely extending above the hatch 100. Figure 2 As shown, when the hatch 100 is opened, the first limit member 210 provided on the main frame 200 abuts against the outer wall of the hatch 100, thereby limiting the opening angle of the hatch 100, thereby preventing the hatch from being blown open rapidly due to excessive airflow, thereby preventing harm to the operator. At the same time, the protective component 400 is in the second position, blocking the operator and the hatch, ensuring a safe distance between the operator and the hatch, especially when the hatch is closed quickly or opened quickly by external force, the safe distance can ensure that the operator will not be pinched or crushed by the hatch, which is safer and more reliable.

[0029] It should be emphasized that, in this embodiment, when the door 100 is closed, Figure 1 As shown, the protection assembly 400 is in the first position, when the hatch 100 is opened, as shown in FIG. Figure 2 As shown, the guard assembly 400 is in the second position.

[0030] Preferably, Figure 3As shown, the protection assembly 400 includes a protection seat 410 provided on the main frame 200, a protection rod 420 rotatably connected to the protection seat 410, and a second limiting member 430 provided between the protection seat 410 and the protection rod 420 for limiting the rotation of the protection rod 420. Figure 1 As shown, four protective seats 410 are provided on the main frame 200, and a second limiting member 430 is provided between the protective seat 410 and the protective rod 420. The four protective seats 410 are connected to the same protective rod 420, and the second limiting member 430 can drive the protective rod 420 to rotate together with the rotation.

[0031] Preferably, the protective seat 410 is provided with a fixed shaft 440, and the second limiting member 430 passes through the fixed shaft 440 and is rotatably connected to the fixed shaft 440. The second limiting member 430 is driven to rotate around the fixed shaft 440 so as to abut against the side of the protective seat 410. Specifically, when the second limiting member 430 abuts against the first side of the protective seat 410, the protective rod 420 is in the first position, and the hatch 100 is in the position as shown in FIG. Figure 1 In the closed state shown, the second limit member 430 can be pressed against the first side of the protective seat 410 by the gravity of the inclined protective rod 420, which is equivalent to folding the protective assembly 400, taking up less space and being conducive to the rational use of limited space.

[0032] Preferably, the second stopper 430 includes a stopper body 431 through which the fixed shaft 440 passes, a first protrusion 432 extending distally from the stopper body 431 and capable of abutting one side of the protective seat 410, and a second protrusion 433 capable of abutting the other side of the protective seat 410. The end of the stopper body 431 distal from the fixed shaft 440 is connected to the protective rod 420. In this embodiment, the stopper body 431, the first protrusion 432, and the second protrusion 433 on either side respectively form two notches recessed into the second stopper 430. When the hatch 100 is closed, the notch formed by the stopper body 431 and the first protrusion 432 abuts the side of the protective seat 410 closer to the hatch 100 (i.e., the first position). When the hatch 100 is open, the notch formed by the stopper body 431 and the second protrusion 433 abuts the side of the protective seat 410 farther from the hatch 100 (i.e., the second position). It should be emphasized that no other fixing structure is required to fix the protective rod 420, because the inclined protective rod 420 can press the second limit member 430 toward the first position of the protective seat 410 by gravity. When opening, it is only necessary to apply a greater force to the protective rod 420 to pull it to the second position of the protective seat 410. The structure is simple and easy to operate.

[0033] Preferably, the protective seat 410 abuts against the first protrusion 432 via the first abutting plate 450, and abuts against the second protrusion 433 via the second abutting plate 460. In this embodiment, when the second position-limiting member 430 is in the first position, the notch formed by the position-limiting body 431 and the first protrusion 432 abuts against the first abutting plate 450. When the second position-limiting member 430 is in the second position, the notch formed by the position-limiting body 431 and the second protrusion 433 abuts against the second abutting plate 460.

[0034] Preferably, the first position-limiting member 210 includes a first connecting piece 211 disposed on the main frame 200 and a second connecting piece 212 abutting against the hatch 100, the two being connected by an arc-shaped member 213. In this embodiment, the first connecting piece 211, the arc-shaped member 213, and the second connecting piece 212 are integrally formed, being a bent arc-shaped member, one end of which is fixed to the main frame 200 and the other end extends to a position where the curvature of the bend can be adjusted during use. Specifically, when the angle between the first connecting piece 211 and the second connecting piece 212 is small, the hatch 100 can open to a larger angle; when the angle between the first connecting piece 211 and the second connecting piece 212 is large, the hatch 100 can open to a smaller angle. The angle can be flexibly adjusted according to actual needs.

[0035] Preferably, Figure 4 As shown, the first locking member 300 includes a first locking rod 310 disposed on the door 100 and extending to the main frame 200, a first locking seat 320 disposed on the main frame 100, and a first clamping block 330 disposed on the first locking seat 320 for mounting and securing the first locking rod 310. In this embodiment, the first locking rod 310 is disposed on the outside of the left door 100. Both ends of the first locking rod 310 are provided with protrusions 311. Accordingly, the first locking seat 320 is provided with a receiving groove for accommodating the protrusions 311. The protrusion 311 is provided with an inwardly recessed notch 312. The first clamping block 330 extends upward from the notch 312 and prevents the protrusion 311 from disengaging from the receiving groove, thereby securing the first locking rod 310 and the first locking seat 320. More preferably, the first blocking block 330 is a T-shaped structure, which passes through the notch 312 and spans above the protrusions 311 on both sides of the notch 312, preventing the protrusions 311 from escaping from the receiving groove, thereby achieving mutual fixation between the first locking rod 310 and the first locking seat 320.

[0036] Preferably, Figure 5As shown, the wind turbine hatch also includes a second locking member 500 disposed between the two hatches 100. This member comprises a second locking rod 510 disposed on one hatch 100 and extending to the other hatch, a second locking seat 520 disposed on the other hatch 100, and a second latch 530 disposed on the second locking seat 520 for mounting and securing the second locking rod 510. Preferably, both hatches 100 are equipped with a handle 700 and a transparent observation window, allowing the user to observe the interior of the hatches. More preferably, a sealing strip is provided between the perimeter of each hatch 100 and the main frame 200 to ensure a good seal.

[0037] Preferably, one end of the second locking rod 510 is connected to the first locking rod 320, and the other end is engaged with the second locking seat 520. In this embodiment, one end of the second locking rod 510 is perpendicularly arranged and fixed to the first locking rod 320, while the other end is inserted into a receiving groove provided on the second locking seat 520. The second clamping block 530 provided on the second locking seat 520 is bent toward the second locking rod 510 and clamps the second locking rod 510, thereby securing the second locking rod 510 to the second locking seat 520. More preferably, both the second locking rod 510 and the second clamping block 530 are penetrated by an L-shaped latch, which makes the connection more stable and further ensures the locking effect of the cabin door 100.

[0038] Preferably, the main frame 200 is rotatably connected to the door 100 via a plurality of damping hinges 600. In this embodiment, three damping hinges 600 are provided between the left door 100 and the main frame 200, and three damping hinges 600 are provided between the right door 100 and the main frame 200. The damping hinges 600 on the sides of the door 100 cooperate with the first stopper 210 to ensure normal opening and rotation of the door 100 while limiting its opening angle to avoid safety issues. This also reduces wear and deformation of the damping hinges, extending their service life.

[0039] When the hatch 100 needs to be opened, first pull the protective assembly 400 to the second position, that is, pull the protective rod 420 clockwise until the second limit member 430 abuts against the second abutment plate 460, open the second locking member 500 to open the hatch 100 on the right, and then open the first locking member 300 to open the hatches 100 on both sides.

[0040] When the hatch 100 needs to be closed, first close the second locking member 500 to fix the left hatch, then close the first locking member 300 to fix both hatches, and finally pull the protective assembly 400 upward to the first position, that is, pull the protective rod 420 counterclockwise until the second limit member 430 abuts against the first abutment plate 450.

[0041] The advantages and positive effects of the present invention are as follows: the first limiter provided on the main frame abuts against the outer wall of the hatch, thereby limiting the hatch opening angle, thus preventing the hatch from being blown open rapidly due to excessive airflow, thereby preventing harm to the operator; at the same time, the protective component is in the open state (i.e., the second position), blocking the operator from the hatch, ensuring a safe distance between the operator and the hatch, especially when the hatch is quickly closed or opened quickly due to external forces, the safe distance can ensure that the operator will not be pinched or crushed by the hatch, making it safer and more reliable. In addition, the first limiter and the damping hinge that cooperate with each other can not only limit the hatch opening angle and avoid safety problems, but also reduce and protect the wear and deformation of the damping hinge, thereby extending its service life.

[0042] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A wind turbine hatch, characterized by: It includes a main frame rotatably connected to the cabin door, a first locking member arranged between the cabin door and the main frame, a first limiting member arranged on the main frame for limiting the rotation angle of the cabin door, and a protective component rotatably connected to the main frame and obliquely extending above the cabin door.

2. The wind turbine hatch according to claim 1, characterized in that: The protection assembly includes a protection seat arranged on the main frame, a protection rod rotatably connected to the protection seat, and a second limiting member arranged between the protection seat and the protection rod for limiting the rotation of the protection rod.

3. The wind turbine hatch according to claim 2, characterized in that: The protective seat is provided with a fixed shaft, the second limiting member passes through the fixed shaft and is rotatably connected to the fixed shaft, and the second limiting member can be driven to rotate around the fixed shaft to abut against the side edges of the protective seat respectively.

4. The wind turbine hatch according to claim 3, characterized in that: The second limiting member includes a limiting body through which the fixed shaft passes, a first protrusion extending away from the limiting body and capable of abutting against one side of the protective seat, and a second protrusion capable of abutting against the other side of the protective seat. The end of the limiting body away from the fixed shaft is connected to the protective rod.

5. The wind turbine hatch according to claim 4, characterized in that: The protective seat abuts against the first protrusion through a first abutting plate, and abuts against the second protrusion through a second abutting plate.

6. The wind turbine hatch according to any one of claims 1 to 5, characterized in that: The first position-limiting member includes a first connecting piece provided on the main frame and a second connecting piece abutting against the hatch, and the first connecting piece and the second connecting piece are connected by an arc-shaped member.

7. The wind turbine hatch according to claim 6, characterized in that: The first locking member includes a first locking rod provided on the cabin door and extending to the main frame, a first locking seat provided on the main frame, and a first clamping block provided on the first locking seat for mounting and fixing the first locking rod.

8. The wind turbine hatch according to claim 7, characterized in that: The wind turbine hatch also includes a second locking member arranged between the two hatches, which includes a second locking rod arranged on one of the hatches and extending to the other hatch, a second locking seat arranged on the other hatch, and a second clamping block connecting the second locking rod and the second locking seat.

9. The wind turbine hatch according to claim 8, characterized in that: One end of the second locking rod is connected to the first locking rod, and the other end is clamped with the second locking seat.

10. The wind turbine hatch according to claim 8 or 9, characterized in that: The main frame is rotatably connected to the cabin door via a plurality of damping hinges.

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