Anti-water-leakage and anti-deformation wind power tower drum door structure and wind turbine generator
By designing a double-sealing structure and a clamping mechanism on the wind turbine tower door, combined with an anti-deformation frame, the problem of easy deformation and water leakage of the tower door is solved, achieving a highly efficient sealing effect and anti-deformation capability, and protecting the internal structure of the tower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-14
AI Technical Summary
Existing wind turbine tower doors are prone to deformation and leakage, have poor sealing reliability, and cannot effectively prevent rainwater from entering the tower.
The design employs a double-seal structure and a pressing mechanism, combined with an anti-deformation frame, to ensure a tight fit of the sealing ring. Multiple seals are achieved through the cooperation of the bent edge and the retaining edge, and the door panel is tightly fitted using wedge blocks and force-saving levers.
It effectively prevents rainwater from leaking into the tower, improves sealing reliability, protects the internal structure of the tower from corrosion, and enhances the deformation resistance of the door panel.
Smart Images

Figure CN224120165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wind turbine tower doors, and in particular to a water-proof and deformation-resistant wind turbine tower door structure and a wind turbine. Background Technology
[0002] The existing wind turbine tower door panels are flat, with a single rubber ring on the door frame used for waterproofing. However, the door panels are prone to deformation during welding and manufacturing, and can easily deform due to impacts during use. This can lead to a failure to properly seal the door frame, resulting in leaks and affecting usability. Furthermore, the door frame relies solely on a single rubber ring for sealing, requiring a high degree of flatness in the door panel and lacking a proper clamping mechanism, resulting in poor reliability. Even slight deformation can create gaps between the rubber ring and the door panel, allowing rainwater to seep in and cause leaks, potentially leading to corrosion and other adverse effects on the tower's interior. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a water-proof and deformation-resistant wind turbine tower door structure, which can effectively solve the problem of easy deformation and water leakage of wind turbine tower doors.
[0004] Another objective of this utility model is to provide a wind turbine generator set.
[0005] The objective of this utility model can be achieved by adopting the following technical solutions:
[0006] A water-proof and deformation-resistant wind turbine tower door structure includes a door frame, a door panel, a deformation-resistant frame, a retaining edge, a double-sealing structure, and a pressing mechanism. One side of the door panel is hinged to the door frame, and the inner side of the door panel is provided with a deformation-resistant frame. The outer edge of the frame has a bend that bends inward. The inner circumference of the door frame is provided with a retaining edge. When the door panel is closed, the bend that abuts against the retaining edge is provided, and a double-sealing structure is provided between the bend that is bend and the retaining edge. A pressing mechanism is provided between the other side of the door frame and the door panel. The pressing mechanism makes the bend that is bend and the retaining edge fit tightly together and presses the double-sealing structure to achieve a sealing effect.
[0007] Furthermore, the double-sealing structure includes a first sealing ring disposed on the edge of the bent edge and a second sealing ring disposed on the edge of the retaining edge.
[0008] Furthermore, the U-shaped mounting body of the first sealing ring is installed on the edge of the bent side, and the first seal is formed by the cooperation of its O-ring sealing part with the retaining edge.
[0009] Furthermore, the U-shaped mounting body of the second sealing ring is installed on the edge of the flange, and the end of its Y-shaped sealing part extends towards the door panel, forming a second seal by cooperating with the door panel through the Y-shaped sealing part.
[0010] Furthermore, the pressing mechanism includes a rotating bushing, an outer handle, an inner handle, a mounting bracket, and a wedge block. The other side of the door panel has a mounting hole for installing the rotating bushing. The rotating bushing is welded into the mounting hole. The outer handle is located on the outer side of the door panel, its rotating shaft passing through the rotating bushing and connecting to the inner handle located on the inner side of the door panel. The mounting bracket is L-shaped, fixed to the inner circumference of the door frame, and located beside the inner side of the edge. The wedge block is fixed to the mounting bracket. One end of the inner handle is a handle, and the other end has a pressing block. The pressing block abuts against the wedge block, and the side of the pressing block facing the wedge block is a vertical surface, while the side of the wedge block facing the pressing block is a sloping surface that is thinner at the bottom and thicker at the top. The inner or outer handle forms a lever that gradually presses the pressing block against the wedge block on the mounting bracket, ultimately causing the bent edge of the door panel to fit tightly against the edge.
[0011] Furthermore, the deformation-resistant frame is welded from square tubing.
[0012] Another objective of this utility model can be achieved by adopting the following technical solution:
[0013] A wind turbine unit includes the aforementioned leak-proof and deformation-resistant wind turbine tower gate structure.
[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0015] 1. This utility model, through the design of a double-sealing structure, allows water to be discharged through the cavity between the two seals after passing through the first seal in the event of a leak. The design of the pressing mechanism further ensures that the sealing ring fits tightly, guaranteeing the sealing performance of the sealing ring, improving reliability, and protecting the internal structure of the tower from rainwater corrosion.
[0016] 2. This utility model adds an anti-deformation frame to the door panel and adds a bending edge to the outer edge, making the door panel less prone to deformation during welding and use, with strong anti-deformation ability, thus avoiding affecting later use and sealing performance. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the wind turbine tower gate of this utility model.
[0018] Figure 2 This is a structural schematic diagram of the door panel of this utility model.
[0019] Figure 3 This is a schematic diagram of the structure of the retaining edge of this utility model.
[0020] Figure 4 This is a cross-sectional view of the wind turbine tower door of this utility model.
[0021] Figure 5 for Figure 4A magnified view of a portion of point A in the middle.
[0022] Figure 6 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model.
[0023] Figure 7 This is a cross-sectional view of the clamping mechanism of this utility model.
[0024] Figure 8 This is a schematic diagram of the wedge block of this utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0026] Example 1:
[0027] like Figures 1 to 3 As shown, this embodiment provides a water-proof and deformation-resistant wind turbine tower door structure, including a door frame 1, a door panel 2, a deformation-resistant frame 3, a retaining edge 4, a double-sealing structure 5, and a pressing mechanism. One side of the door panel 2 is hinged to the door frame 1 via a hinge 12, and the deformation-resistant frame 3 is welded to the inner side of the door panel 2. The deformation-resistant frame 3 can be welded from square tubing. A bend 201 is formed around the outer edge of the door panel 2, which bends inward. A retaining edge 4 is welded to the inner circumference of the door frame 1. When the door panel 2 is in a closed state, the bend 201 abuts against the retaining edge 4, and a double-sealing structure 5 is provided between the bend 201 and the retaining edge 4. A pressing mechanism is provided between the other side of the door frame 1 and the door panel 2. The pressing mechanism makes the bend 201 and the retaining edge 4 fit tightly together and press the double-sealing structure 5 to achieve a sealing effect.
[0028] like Figures 4 to 5 As shown, the double sealing structure 5 includes a first sealing ring disposed on the edge of the bent edge 201 and a second sealing ring disposed on the edge of the retaining edge 4. The gap between the two sealing rings forms a channel that facilitates the downward flow of rainwater.
[0029] The U-shaped mounting body 501 of the first sealing ring is installed on the edge of the bent edge 201. Its O-shaped sealing part 502 cooperates with the baffle 4 to form the first seal, which can prevent most of the water from entering from the outside. The U-shaped mounting body 503 of the second sealing ring is installed on the edge of the baffle 4. The end of its Y-shaped sealing part 504 extends towards the door plate 2. Its Y-shaped sealing part cooperates with the door plate 2 to form the second seal. If the first sealing ring is deformed or damaged, some of the rainwater that has passed through the first sealing ring can flow down along the cavity between the two sealing rings instead of flowing into the tower, effectively protecting the internal components of the tower.
[0030] like Figures 6 to 8 As shown, the clamping mechanism includes a rotating bushing 6, an outer handle 7, an inner handle 8, a mounting bracket 9, and a wedge block 10. A mounting hole for mounting the rotating bushing 6 is provided on the other side of the door panel 2. The rotating bushing 6 is welded into the mounting hole. The outer handle 7 is located on the outer side of the door panel 2, and its rotating shaft passes through the rotating bushing 6 and connects to the inner handle 8 located on the inner side of the door panel 2. The mounting bracket 9 is L-shaped, fixed to the inner circumferential surface of the door frame 1, and located beside the inner side of the edge 4. The wedge block 10 is fixed to the mounting bracket 9. On the mounting bracket 9, one end of the inner handle 8 is a handle, and the other end is provided with a pressing block 11. The pressing block 11 abuts against the wedge block 10, and the side of the pressing block 11 facing the wedge block 10 is a vertical surface, while the side of the wedge block 10 facing the pressing block 11 is a sloping surface that is thinner at the bottom and thicker at the top. The inner handle 8 or the outer handle 7 forms a force-saving lever, which gradually presses the pressing block 11 against the wedge block 10 on the mounting bracket 9, and finally drives the bending edge 201 of the door panel 2 to fit tightly against the edge 4.
[0031] Example 2:
[0032] This embodiment provides a wind turbine unit, including the water-proof and deformation-resistant wind turbine tower door structure described in Embodiment 1.
[0033] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.
Claims
1. A water-proof and deformation-resistant wind turbine tower gate structure, characterized in that: The device includes a door frame, a door panel, an anti-deformation frame, a retaining edge, a double-sealing structure, and a pressing mechanism. One side of the door panel is hinged to the door frame, and the inner side of the door panel is provided with an anti-deformation frame. The outer edge of the frame has a bend that bends inward. The inner circumference of the door frame is provided with a retaining edge. When the door panel is closed, the bend that abuts against the retaining edge is provided. A double-sealing structure is provided between the bend that abuts against the retaining edge and the door frame. A pressing mechanism is provided between the other side of the door frame and the door panel. The pressing mechanism makes the bend that abuts against the retaining edge tightly fit and presses the double-sealing structure to achieve a sealing effect.
2. The water-proof and deformation-resistant wind turbine tower gate structure according to claim 1, characterized in that: The double-sealing structure includes a first sealing ring disposed on the edge of the bent edge and a second sealing ring disposed on the edge of the retaining edge.
3. The water-proof and deformation-resistant wind turbine tower gate structure according to claim 2, characterized in that: The U-shaped mounting body of the first sealing ring is installed on the edge of the bent side, and the first seal is formed by the cooperation of its O-ring sealing part with the retaining edge.
4. The water-proof and deformation-resistant wind turbine tower gate structure according to claim 2, characterized in that: The U-shaped mounting body of the second sealing ring is installed on the edge of the flange, and the end of its Y-shaped sealing part extends towards the door panel, forming a second seal by cooperating with the door panel through the Y-shaped sealing part.
5. The water-proof and deformation-resistant wind turbine tower gate structure according to claim 1, characterized in that: The clamping mechanism includes a rotating shaft sleeve, an outer handle, an inner handle, a mounting bracket, and a wedge block. A mounting hole for installing the rotating shaft sleeve is provided on the other side of the door panel. The rotating shaft sleeve is welded into the mounting hole. The outer handle is located on the outer side of the door panel, and its rotating shaft passes through the rotating shaft sleeve and connects to the inner handle located on the inner side of the door panel. The mounting bracket is L-shaped, fixed to the inner circumference of the door frame, and located next to the inner side of the edge. The wedge block is fixed to the mounting bracket. One end of the inner handle is a handle, and the other end is provided with a clamping block. The clamping block abuts against the wedge block, and the side of the clamping block facing the wedge block is a vertical surface, while the side of the wedge block facing the clamping block is a sloping surface that is thinner at the bottom and thicker at the top. The inner or outer handle forms a lever that gradually presses the clamping block against the wedge block on the mounting bracket, ultimately causing the bent edge of the door panel to fit tightly against the edge.
6. The water-proof and deformation-resistant wind turbine tower gate structure according to claim 1, characterized in that: The deformation-resistant frame is welded from square tubing.
7. A wind turbine generator set, characterized in that: Including the water-proof and deformation-resistant wind turbine tower gate structure as described in any one of claims 1 to 6.