Limiting and fixing type wind power cabin cover

Abstract

The utility model discloses a limiting and fixing type wind power cabin cover, and belongs to the technical field of wind power cabin covers. The wind power cabin cover comprises a bottom frame and an overturning cover hinged to the bottom frame, a first limiting structure is arranged at the hinged position of the overturning cover and the bottom frame and used for limiting the maximum overturning angle of the overturning cover relative to the bottom frame, a limiting piece is hinged to the bottom frame, and the end of the limiting piece is matched with a second limiting structure of the overturning cover. The limiting device is used for limiting the turnover cover to be in the maximum opening and closing posture. The opening overturning angle of the overturning cover is limited through the first limiting structure, buckling of the overturning cover is hindered through cooperation of the limiting piece and the second limiting structure, and the opening posture of the overturning cover can be maintained through limiting cooperation of the limiting piece and the second limiting structure. Compared with a traditional hatch cover which uses a gas spring to limit the turnover cover, the limiting mode provided by the utility model is lower in cost and longer in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine cabin covers, in particular to a limited fixed wind turbine cabin cover. Background Art

[0002] The wind turbine hatch is a port for access inside a wind turbine. The utility model with application number CN202220321243.5 discloses a wind turbine hub hatch, the upper cover of which is opened with the help of a gas spring, and the gas spring can limit the opening degree of the upper cover.

[0003] As far as the existing technology is concerned, the cost of using gas springs is high, and the number of times they can be used is limited. The node of their failure cannot be determined. If a gas spring fails, it is difficult to manually open the metal cover. In summary, the existing wind turbine cabin covers have the problems of high cost and short service life. Utility Model Content

[0004] The purpose of the utility model is to provide a limited fixed wind turbine cabin cover to solve the above problems existing in the prior art.

[0005] Technical solution: A limited fixed wind turbine cabin cover, comprising a bottom frame and a flip cover hinged on the bottom frame, a limiting structure 1 is provided at the hinged position between the flip cover and the bottom frame, for limiting the maximum flip angle of the flip cover relative to the bottom frame, a limiting member is hinged on the bottom frame, and the end of the limiting member cooperates with the limiting structure 2 of the flip cover, for limiting the flip cover to be in the maximum opening and closing position.

[0006] Furthermore, the bottom frame includes a low frame body and a hinge seat installed on the low frame body, the limiter is hinged on the hinge seat, and a torsion spring is provided between the limiter and the hinge seat.

[0007] Furthermore, the flip cover includes an upper frame and a reinforcement strip, the upper frame is hinged on the bottom frame, the limiting structure 1 is arranged on the upper frame, and forms a contact limit with the bottom frame when the upper frame is flipped, the reinforcement strip is arranged on the upper frame, and the limiting structure 2 is arranged on the reinforcement strip.

[0008] Furthermore, a cover area is formed between the upper frame and the reinforcing strip, a plastic cover is provided in the cover area, a limiting coaxial handle is provided on the plastic cover, and the limiting coaxial handle cooperates with the bottom frame to lock the bottom frame and the flip cover.

[0009] Furthermore, a sealing strip is provided between the bottom frame and the flip cover, and the sealing strip includes a mounting portion, a pressing portion and a clamping portion, the clamping portion is provided on the mounting portion, the clamping portion and the mounting portion are filled in a groove-shaped filling structure of the upper frame, and the pressing portion is provided on the mounting portion to form a seal with the bottom frame.

[0010] Furthermore, the flip cover is buckled on the bottom frame, and the flip cover and the bottom frame are circular or rectangular.

[0011] Beneficial effect: The utility model uses the limiting structure 1 to limit the opening and flipping angle of the flip cover, and uses the cooperation between the limiting member and the limiting structure 2 to prevent the flip cover from buckling. Through the limiting cooperation between the limiting member and the limiting structure 2, the opening posture of the flip cover can be maintained. Compared with the traditional hatch cover using a gas spring to limit the flip cover, the limiting form provided by the utility model has lower cost and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 and Figure 4 It is a structural schematic diagram of the utility model;

[0013] Figure 2 The utility model is Figure 1 The enlarged view of point A in the middle;

[0014] Figure 3 It is an exploded view of the utility model;

[0015] Figure 5 This utility model Figure 4 A cross-sectional view of

[0016] Figure 6 The utility model is Figure 5 The enlarged view of point B in the middle;

[0017] Figure 7 It is a schematic diagram of the cross-sectional structure of the sealing strip in the utility model.

[0018] The accompanying drawings are marked as follows: 1. bottom frame; 11. lower frame; 12. hinged seat; 2. flip cover; 21. upper frame; 22. sealing strip; 221. mounting portion; 222. pressing portion; 223. locking portion; 23. reinforcing strip; 24. limiting structure 1; 25. limiting structure 2; 26. cover plate area; 3. limiting member; 31. torsion spring. DETAILED DESCRIPTION

[0019] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0020] like Figure 1-Figure 7As shown, a limited fixed wind turbine cabin cover comprises a bottom frame 1 and a flip cover 2 hinged on the bottom frame 1, a limit structure 24 is provided at the position where the flip cover 2 is hinged to the bottom frame 1, for limiting the maximum flip angle of the flip cover 2 relative to the bottom frame 1, a limit member 3 is hinged on the bottom frame 1, and an end of the limit member 3 cooperates with a limit structure 25 of the flip cover 2, for limiting the flip cover 2 to be in a maximum opening and closing position.

[0021] The utility model uses the limiting structure 1 24 to limit the opening and flipping angle of the flip cover 2, and uses the cooperation of the limiting member 3 and the limiting structure 2 25 to prevent the flip cover 2 from buckling. Through the limiting cooperation of the limiting member 3 and the limiting structure 2 25, the opening posture of the flip cover 2 can be maintained. The limit of the flip cover 2 is best at 90° to 105°. Compared with the traditional hatch cover using a gas spring to limit the flip cover 2, the limiting structure provided by the utility model can withstand a wind speed of not less than 15m / s, and the limiting form has a lower cost, a longer service life, and is easier to maintain.

[0022] like Figure 2-Figure 3 As shown, the bottom frame 1 includes a low frame body 11 and a hinge seat 12 installed on the low frame body 11 , the limiter 3 is hinged on the hinge seat 12 , and a torsion spring 31 is provided between the limiter 3 and the hinge seat 12 .

[0023] The torsion spring 31 can be set so that the end of the limit member 3 always has the potential energy to rotate toward the flip cover 2, so that the end of the limit member 3 contacts the flip cover 2, which avoids manual operation of the limit member 3 and the limit structure 25 when opening the flip cover 2, and is more convenient to use.

[0024] like Figure 1-Figure 3 As shown, the flip cover 2 includes an upper frame 21 and a reinforcing strip 23, the upper frame 21 is hinged on the bottom frame 1, the limiting structure 1 24 is arranged on the upper frame 21, and forms a contact limit with the bottom frame 1 when the upper frame 21 is flipped, the reinforcing strip 23 is arranged on the upper frame 21, and the limiting structure 25 is arranged on the reinforcing strip 23. The reinforcing strip 23 provides installation conditions for the limiting structure 2 25 and enhances the anti-deformation ability of the flip cover 2.

[0025] Preferably, the limiting structure 25 can be selected as a convex block structure, and the limiting member 3 is an arc-shaped block structure, and the structure at its end that cooperates with the limiting structure 25 is a groove. Compared with the straight block structure, the arc-shaped block structure can reduce the influence of the limiting structure 25 on its posture, so that the limiting structure can cooperate in time; the limiting structure 25 can also be selected as a groove, and the structure at the end of the limiting member 3 that cooperates with it is a convex block; other structural forms that can achieve contact limiting are also possible, and no specific restrictions are made here.

[0026] like Figure 3-Figure 4As shown, a cover area 26 is formed between the upper frame 21 and the reinforcing strip 23 , a plastic cover is provided in the cover area 26 , a limiting coaxial handle is provided on the plastic cover, and the limiting coaxial handle cooperates with the bottom frame 1 to lock the bottom frame 1 and the flip cover 2 .

[0027] The upper frame 21 and the reinforcing strip 23 of the flip cover 2 are made of metal, and the cover plate area 26 is hollowed out in a large area and filled with a plastic cover plate to reduce the metal material and reduce the production cost, but the overall performance of the flip cover 2 remains unchanged. The limited coaxial handle is the handle disclosed in application number CN202221095760.1, which can open the flip cover 2 from both sides of the flip cover 2 and resist centrifugal force in a rotating environment to prevent accidental opening.

[0028] like Figure 1 and Figure 5-Figure 7 As shown, a sealing strip 22 is provided between the bottom frame 1 and the flip cover 2, and the sealing strip 22 includes a mounting portion 221, a pressing portion 222 and a clamping portion 223, the clamping portion 223 is provided on the mounting portion 221, the clamping portion 223 and the mounting portion 221 are filled in the groove-shaped filling structure of the upper frame 21, and the pressing portion 222 is provided on the mounting portion 221 to form a seal with the bottom frame 1.

[0029] The special structure of the sealing strip 22 does not require glue when installed on the bottom frame 1. The snap-fitting portion 223 cooperates with the groove filling structure of the upper frame 21 to achieve a firm snap connection, avoiding the traditional gluing process during production and improving production efficiency.

[0030] The flip cover 2 is buckled on the bottom frame 1, and the flip cover 2 and the bottom frame 1 are circular or rectangular. In particular, when the hatch cover is installed in a conventional position, a flip cover 2 and a bottom frame 1 with a rectangular structure can be selected; when the hatch cover is installed in a rotating position, a flip cover 2 and a bottom frame 1 with a circular structure are preferred, because the circular structure has better mechanical properties and is conducive to reducing wind resistance.

[0031] When the utility model is used, taking the process of opening the flip cover 2 as an example, the locking effect of the limit type coaxial hand on the flip cover 2 is first manually released, and then the flip cover 2 is manually flipped. Because the plastic cover plate is selected, the mass of the flip cover 2 is greatly reduced, and it is not laborious to manually open the flip cover 2. In the process of rotating the flip cover 2, the end of the limit member 3 moves on the reinforcing strip 23 until the end of the limit member 3 forms a limit fit with the second limit structure 25. At this time, the first limit structure 24 just forms a contact limit with the low frame 11. The two limit forms keep the flip cover 2 in a fixed posture.

[0032] When the flip cover 2 needs to be buckled, it is only necessary to manually buckle the limiter 3, which causes the limiter 3 to flip around the hinge end, and the cooperation between the end of the limiter 3 and the second limiter structure 25 is cancelled, and the flip cover 2 is rotated toward the bottom frame 1. Finally, the bottom frame 1 and the flip cover 2 can be locked by the limit type coaxial hand lock.

[0033] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A limited fixed wind turbine cabin cover, comprising a bottom frame (1) and a flip cover (2) hinged on the bottom frame (1), characterized in that: A first limiting structure (24) is provided at the hinged position between the flip cover (2) and the bottom frame (1), which is used to limit the maximum flip angle of the flip cover (2) relative to the bottom frame (1); a limiting member (3) is hinged on the bottom frame (1); the end of the limiting member (3) cooperates with a second limiting structure (25) of the flip cover (2), which is used to limit the flip cover (2) to a maximum opening and closing position; The flip cover (2) comprises an upper frame (21), the upper frame (21) is hinged on the bottom frame (1), a sealing strip (22) is provided between the bottom frame (1) and the flip cover (2), the sealing strip (22) comprises a mounting portion (221), a pressing portion (222) and a clamping portion (223), the clamping portion (223) is provided on the mounting portion (221), the clamping portion (223) and the mounting portion (221) are filled in a groove-shaped filling structure of the upper frame (21), and the pressing portion (222) is provided on the mounting portion (221) to form a seal with the bottom frame (1).

2. The position-limited fixed wind turbine cabin cover according to claim 1, characterized in that: The bottom frame (1) comprises a low frame body (11) and a hinge seat (12) mounted on the low frame body (11); the limiter (3) is hinged on the hinge seat (12); and a torsion spring (31) is provided between the limiter (3) and the hinge seat (12).

3. The position-limited fixed wind turbine cabin cover according to claim 1, characterized in that: The flip cover (2) further comprises a reinforcing strip (23), the first limiting structure (24) is arranged on the upper frame (21), and forms a contact limit with the bottom frame (1) when the upper frame (21) is flipped, the reinforcing strip (23) is arranged on the upper frame (21), and the second limiting structure (25) is arranged on the reinforcing strip (23).

4. The position-limited fixed wind turbine cabin cover according to claim 3 is characterized in that: A cover plate area (26) is formed between the upper frame (21) and the reinforcing strip (23), a plastic cover plate is provided in the cover plate area (26), a limiting coaxial handle is provided on the plastic cover plate, and the limiting coaxial handle cooperates with the bottom frame (1) and is used to lock the bottom frame (1) and the flip cover (2).

5. The position-limited fixed wind turbine cabin cover according to claim 1, characterized in that: The flip cover (2) is buckled onto the bottom frame (1); the flip cover (2) and the bottom frame (1) are circular or rectangular.

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